217555520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:309

約数の個数: 224

約数和(自身を含む): 660903936

約数和(自身を除く): 443348416

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 160, 182, 208, 217, 224, 241, 248, 260, 280, 310, 320, 364, 403, 416, 434, 448, 455, 482, 496, 520, 560, 620, 728, 806, 832, 868, 910, 964, 992, 1040, 1085, 1120, 1205, 1240, 1456, 1612, 1687, 1736, 1820, 1928, 1984, 2015, 2080, 2170, 2240, 2410, 2480, 2821, 2912, 3133, 3224, 3374, 3472, 3640, 3856, 4030, 4160, 4340, 4820, 4960, 5642, 5824, 6266, 6448, 6748, 6944, 7280, 7471, 7712, 8060, 8435, 8680, 9640, 9920, 11284, 12532, 12896, 13496, 13888, 14105, 14560, 14942, 15424, 15665, 16120, 16870, 17360, 19280, 21931, 22568, 25064, 25792, 26992, 28210, 29120, 29884, 31330, 32240, 33740, 34720, 37355, 38560, 43862, 45136, 50128, 52297, 53984, 56420, 59768, 62660, 64480, 67480, 69440, 74710, 77120, 87724, 90272, 97123, 100256, 104594, 107968, 109655, 112840, 119536, 125320, 128960, 134960, 149420, 175448, 180544, 194246, 200512, 209188, 219310, 225680, 239072, 250640, 261485, 269920, 298840, 350896, 388492, 418376, 438620, 451360, 478144, 485615, 501280, 522970, 539840, 597680, 679861, 701792, 776984, 836752, 877240, 902720, 971230, 1002560, 1045940, 1195360, 1359722, 1403584, 1553968, 1673504, 1754480, 1942460, 2091880, 2390720, 2719444, 3107936, 3347008, 3399305, 3508960, 3884920, 4183760, 5438888, 6215872, 6798610, 7017920, 7769840, 8367520, 10877776, 13597220, 15539680, 16735040, 21755552, 27194440, 31079360, 43511104, 54388880, 108777760, 217555520]

約数ペア:

[(1, 217555520), (2, 108777760), (4, 54388880), (5, 43511104), (7, 31079360), (8, 27194440), (10, 21755552), (13, 16735040), (14, 15539680), (16, 13597220), (20, 10877776), (26, 8367520), (28, 7769840), (31, 7017920), (32, 6798610), (35, 6215872), (40, 5438888), (52, 4183760), (56, 3884920), (62, 3508960), (64, 3399305), (65, 3347008), (70, 3107936), (80, 2719444), (91, 2390720), (104, 2091880), (112, 1942460), (124, 1754480), (130, 1673504), (140, 1553968), (155, 1403584), (160, 1359722), (182, 1195360), (208, 1045940), (217, 1002560), (224, 971230), (241, 902720), (248, 877240), (260, 836752), (280, 776984), (310, 701792), (320, 679861), (364, 597680), (403, 539840), (416, 522970), (434, 501280), (448, 485615), (455, 478144), (482, 451360), (496, 438620), (520, 418376), (560, 388492), (620, 350896), (728, 298840), (806, 269920), (832, 261485), (868, 250640), (910, 239072), (964, 225680), (992, 219310), (1040, 209188), (1085, 200512), (1120, 194246), (1205, 180544), (1240, 175448), (1456, 149420), (1612, 134960), (1687, 128960), (1736, 125320), (1820, 119536), (1928, 112840), (1984, 109655), (2015, 107968), (2080, 104594), (2170, 100256), (2240, 97123), (2410, 90272), (2480, 87724), (2821, 77120), (2912, 74710), (3133, 69440), (3224, 67480), (3374, 64480), (3472, 62660), (3640, 59768), (3856, 56420), (4030, 53984), (4160, 52297), (4340, 50128), (4820, 45136), (4960, 43862), (5642, 38560), (5824, 37355), (6266, 34720), (6448, 33740), (6748, 32240), (6944, 31330), (7280, 29884), (7471, 29120), (7712, 28210), (8060, 26992), (8435, 25792), (8680, 25064), (9640, 22568), (9920, 21931), (11284, 19280), (12532, 17360), (12896, 16870), (13496, 16120), (13888, 15665), (14105, 15424), (14560, 14942)]