639438240

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:940

約数の個数: 288

約数和(自身を含む): 2421425664

約数和(自身を除く): 1781987424

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 49, 56, 60, 62, 70, 80, 84, 93, 96, 98, 105, 112, 120, 124, 140, 147, 155, 160, 168, 186, 196, 210, 217, 224, 240, 245, 248, 280, 294, 310, 336, 372, 392, 420, 434, 465, 480, 490, 496, 560, 588, 620, 651, 672, 735, 744, 784, 840, 868, 877, 930, 980, 992, 1085, 1120, 1176, 1240, 1302, 1470, 1488, 1519, 1568, 1680, 1736, 1754, 1860, 1960, 2170, 2352, 2480, 2604, 2631, 2940, 2976, 3038, 3255, 3360, 3472, 3508, 3720, 3920, 4340, 4385, 4557, 4704, 4960, 5208, 5262, 5880, 6076, 6139, 6510, 6944, 7016, 7440, 7595, 7840, 8680, 8770, 9114, 10416, 10524, 11760, 12152, 12278, 13020, 13155, 14032, 14880, 15190, 17360, 17540, 18228, 18417, 20832, 21048, 22785, 23520, 24304, 24556, 26040, 26310, 27187, 28064, 30380, 30695, 34720, 35080, 36456, 36834, 42096, 42973, 45570, 48608, 49112, 52080, 52620, 54374, 60760, 61390, 70160, 72912, 73668, 81561, 84192, 85946, 91140, 92085, 98224, 104160, 105240, 108748, 121520, 122780, 128919, 135935, 140320, 145824, 147336, 163122, 171892, 182280, 184170, 190309, 196448, 210480, 214865, 217496, 243040, 245560, 257838, 271870, 294672, 326244, 343784, 364560, 368340, 380618, 407805, 420960, 429730, 434992, 491120, 515676, 543740, 570927, 589344, 644595, 652488, 687568, 729120, 736680, 761236, 815610, 859460, 869984, 951545, 982240, 1031352, 1087480, 1141854, 1289190, 1304976, 1332163, 1375136, 1473360, 1522472, 1631220, 1718920, 1903090, 2062704, 2174960, 2283708, 2578380, 2609952, 2664326, 2854635, 2946720, 3044944, 3262440, 3437840, 3806180, 3996489, 4125408, 4349920, 4567416, 5156760, 5328652, 5709270, 6089888, 6524880, 6660815, 6875680, 7612360, 7992978, 9134832, 10313520, 10657304, 11418540, 13049760, 13321630, 15224720, 15985956, 18269664, 19982445, 20627040, 21314608, 22837080, 26643260, 30449440, 31971912, 39964890, 42629216, 45674160, 53286520, 63943824, 79929780, 91348320, 106573040, 127887648, 159859560, 213146080, 319719120, 639438240]

約数ペア:

[(1, 639438240), (2, 319719120), (3, 213146080), (4, 159859560), (5, 127887648), (6, 106573040), (7, 91348320), (8, 79929780), (10, 63943824), (12, 53286520), (14, 45674160), (15, 42629216), (16, 39964890), (20, 31971912), (21, 30449440), (24, 26643260), (28, 22837080), (30, 21314608), (31, 20627040), (32, 19982445), (35, 18269664), (40, 15985956), (42, 15224720), (48, 13321630), (49, 13049760), (56, 11418540), (60, 10657304), (62, 10313520), (70, 9134832), (80, 7992978), (84, 7612360), (93, 6875680), (96, 6660815), (98, 6524880), (105, 6089888), (112, 5709270), (120, 5328652), (124, 5156760), (140, 4567416), (147, 4349920), (155, 4125408), (160, 3996489), (168, 3806180), (186, 3437840), (196, 3262440), (210, 3044944), (217, 2946720), (224, 2854635), (240, 2664326), (245, 2609952), (248, 2578380), (280, 2283708), (294, 2174960), (310, 2062704), (336, 1903090), (372, 1718920), (392, 1631220), (420, 1522472), (434, 1473360), (465, 1375136), (480, 1332163), (490, 1304976), (496, 1289190), (560, 1141854), (588, 1087480), (620, 1031352), (651, 982240), (672, 951545), (735, 869984), (744, 859460), (784, 815610), (840, 761236), (868, 736680), (877, 729120), (930, 687568), (980, 652488), (992, 644595), (1085, 589344), (1120, 570927), (1176, 543740), (1240, 515676), (1302, 491120), (1470, 434992), (1488, 429730), (1519, 420960), (1568, 407805), (1680, 380618), (1736, 368340), (1754, 364560), (1860, 343784), (1960, 326244), (2170, 294672), (2352, 271870), (2480, 257838), (2604, 245560), (2631, 243040), (2940, 217496), (2976, 214865), (3038, 210480), (3255, 196448), (3360, 190309), (3472, 184170), (3508, 182280), (3720, 171892), (3920, 163122), (4340, 147336), (4385, 145824), (4557, 140320), (4704, 135935), (4960, 128919), (5208, 122780), (5262, 121520), (5880, 108748), (6076, 105240), (6139, 104160), (6510, 98224), (6944, 92085), (7016, 91140), (7440, 85946), (7595, 84192), (7840, 81561), (8680, 73668), (8770, 72912), (9114, 70160), (10416, 61390), (10524, 60760), (11760, 54374), (12152, 52620), (12278, 52080), (13020, 49112), (13155, 48608), (14032, 45570), (14880, 42973), (15190, 42096), (17360, 36834), (17540, 36456), (18228, 35080), (18417, 34720), (20832, 30695), (21048, 30380), (22785, 28064), (23520, 27187), (24304, 26310), (24556, 26040)]