1256550280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:575

約数の個数: 128

約数和(自身を含む): 3062707200

約数和(自身を除く): 1806156920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 83, 116, 124, 145, 155, 166, 232, 248, 290, 310, 332, 415, 421, 580, 620, 664, 830, 842, 899, 1160, 1240, 1660, 1684, 1798, 2105, 2407, 2573, 3320, 3368, 3596, 4210, 4495, 4814, 5146, 7192, 8420, 8990, 9628, 10292, 12035, 12209, 12865, 13051, 16840, 17980, 19256, 20584, 24070, 24418, 25730, 26102, 34943, 35960, 48140, 48836, 51460, 52204, 61045, 65255, 69886, 74617, 96280, 97672, 102920, 104408, 122090, 130510, 139772, 149234, 174715, 244180, 261020, 279544, 298468, 349430, 373085, 378479, 488360, 522040, 596936, 698860, 746170, 756958, 1013347, 1083233, 1397720, 1492340, 1513916, 1892395, 2026694, 2166466, 2984680, 3027832, 3784790, 4053388, 4332932, 5066735, 5416165, 7569580, 8106776, 8665864, 10133470, 10832330, 15139160, 20266940, 21664660, 31413757, 40533880, 43329320, 62827514, 125655028, 157068785, 251310056, 314137570, 628275140, 1256550280]

約数ペア:

[(1, 1256550280), (2, 628275140), (4, 314137570), (5, 251310056), (8, 157068785), (10, 125655028), (20, 62827514), (29, 43329320), (31, 40533880), (40, 31413757), (58, 21664660), (62, 20266940), (83, 15139160), (116, 10832330), (124, 10133470), (145, 8665864), (155, 8106776), (166, 7569580), (232, 5416165), (248, 5066735), (290, 4332932), (310, 4053388), (332, 3784790), (415, 3027832), (421, 2984680), (580, 2166466), (620, 2026694), (664, 1892395), (830, 1513916), (842, 1492340), (899, 1397720), (1160, 1083233), (1240, 1013347), (1660, 756958), (1684, 746170), (1798, 698860), (2105, 596936), (2407, 522040), (2573, 488360), (3320, 378479), (3368, 373085), (3596, 349430), (4210, 298468), (4495, 279544), (4814, 261020), (5146, 244180), (7192, 174715), (8420, 149234), (8990, 139772), (9628, 130510), (10292, 122090), (12035, 104408), (12209, 102920), (12865, 97672), (13051, 96280), (16840, 74617), (17980, 69886), (19256, 65255), (20584, 61045), (24070, 52204), (24418, 51460), (25730, 48836), (26102, 48140), (34943, 35960)]