28800240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 240

約数和(自身を含む): 108564480

約数和(自身を除く): 79764240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 49, 56, 60, 62, 70, 79, 80, 84, 93, 98, 105, 112, 120, 124, 140, 147, 155, 158, 168, 186, 196, 210, 217, 237, 240, 245, 248, 280, 294, 310, 316, 336, 372, 392, 395, 420, 434, 465, 474, 490, 496, 553, 560, 588, 620, 632, 651, 735, 744, 784, 790, 840, 868, 930, 948, 980, 1085, 1106, 1176, 1185, 1240, 1264, 1302, 1470, 1488, 1519, 1580, 1659, 1680, 1736, 1860, 1896, 1960, 2170, 2212, 2352, 2370, 2449, 2480, 2604, 2765, 2940, 3038, 3160, 3255, 3318, 3472, 3720, 3792, 3871, 3920, 4340, 4424, 4557, 4740, 4898, 5208, 5530, 5880, 6076, 6320, 6510, 6636, 7347, 7440, 7595, 7742, 8295, 8680, 8848, 9114, 9480, 9796, 10416, 11060, 11613, 11760, 12152, 12245, 13020, 13272, 14694, 15190, 15484, 16590, 17143, 17360, 18228, 18960, 19355, 19592, 22120, 22785, 23226, 24304, 24490, 26040, 26544, 29388, 30380, 30968, 33180, 34286, 36456, 36735, 38710, 39184, 44240, 45570, 46452, 48980, 51429, 52080, 58065, 58776, 60760, 61936, 66360, 68572, 72912, 73470, 77420, 85715, 91140, 92904, 97960, 102858, 116130, 117552, 120001, 121520, 132720, 137144, 146940, 154840, 171430, 182280, 185808, 195920, 205716, 232260, 240002, 257145, 274288, 293880, 309680, 342860, 360003, 364560, 411432, 464520, 480004, 514290, 587760, 600005, 685720, 720006, 822864, 929040, 960008, 1028580, 1200010, 1371440, 1440012, 1800015, 1920016, 2057160, 2400020, 2880024, 3600030, 4114320, 4800040, 5760048, 7200060, 9600080, 14400120, 28800240]

約数ペア:

[(1, 28800240), (2, 14400120), (3, 9600080), (4, 7200060), (5, 5760048), (6, 4800040), (7, 4114320), (8, 3600030), (10, 2880024), (12, 2400020), (14, 2057160), (15, 1920016), (16, 1800015), (20, 1440012), (21, 1371440), (24, 1200010), (28, 1028580), (30, 960008), (31, 929040), (35, 822864), (40, 720006), (42, 685720), (48, 600005), (49, 587760), (56, 514290), (60, 480004), (62, 464520), (70, 411432), (79, 364560), (80, 360003), (84, 342860), (93, 309680), (98, 293880), (105, 274288), (112, 257145), (120, 240002), (124, 232260), (140, 205716), (147, 195920), (155, 185808), (158, 182280), (168, 171430), (186, 154840), (196, 146940), (210, 137144), (217, 132720), (237, 121520), (240, 120001), (245, 117552), (248, 116130), (280, 102858), (294, 97960), (310, 92904), (316, 91140), (336, 85715), (372, 77420), (392, 73470), (395, 72912), (420, 68572), (434, 66360), (465, 61936), (474, 60760), (490, 58776), (496, 58065), (553, 52080), (560, 51429), (588, 48980), (620, 46452), (632, 45570), (651, 44240), (735, 39184), (744, 38710), (784, 36735), (790, 36456), (840, 34286), (868, 33180), (930, 30968), (948, 30380), (980, 29388), (1085, 26544), (1106, 26040), (1176, 24490), (1185, 24304), (1240, 23226), (1264, 22785), (1302, 22120), (1470, 19592), (1488, 19355), (1519, 18960), (1580, 18228), (1659, 17360), (1680, 17143), (1736, 16590), (1860, 15484), (1896, 15190), (1960, 14694), (2170, 13272), (2212, 13020), (2352, 12245), (2370, 12152), (2449, 11760), (2480, 11613), (2604, 11060), (2765, 10416), (2940, 9796), (3038, 9480), (3160, 9114), (3255, 8848), (3318, 8680), (3472, 8295), (3720, 7742), (3792, 7595), (3871, 7440), (3920, 7347), (4340, 6636), (4424, 6510), (4557, 6320), (4740, 6076), (4898, 5880), (5208, 5530)]