64281980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:339

約数の個数: 96

約数和(自身を含む): 162570240

約数和(自身を除く): 98288260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 71, 116, 140, 142, 145, 203, 223, 284, 290, 355, 406, 446, 497, 580, 710, 812, 892, 994, 1015, 1115, 1420, 1561, 1988, 2030, 2059, 2230, 2485, 3122, 4060, 4118, 4460, 4970, 6244, 6467, 7805, 8236, 9940, 10295, 12934, 14413, 15610, 15833, 20590, 25868, 28826, 31220, 31666, 32335, 41180, 45269, 57652, 63332, 64670, 72065, 79165, 90538, 110831, 129340, 144130, 158330, 181076, 221662, 226345, 288260, 316660, 443324, 452690, 459157, 554155, 905380, 918314, 1108310, 1836628, 2216620, 2295785, 3214099, 4591570, 6428198, 9183140, 12856396, 16070495, 32140990, 64281980]

約数ペア:

[(1, 64281980), (2, 32140990), (4, 16070495), (5, 12856396), (7, 9183140), (10, 6428198), (14, 4591570), (20, 3214099), (28, 2295785), (29, 2216620), (35, 1836628), (58, 1108310), (70, 918314), (71, 905380), (116, 554155), (140, 459157), (142, 452690), (145, 443324), (203, 316660), (223, 288260), (284, 226345), (290, 221662), (355, 181076), (406, 158330), (446, 144130), (497, 129340), (580, 110831), (710, 90538), (812, 79165), (892, 72065), (994, 64670), (1015, 63332), (1115, 57652), (1420, 45269), (1561, 41180), (1988, 32335), (2030, 31666), (2059, 31220), (2230, 28826), (2485, 25868), (3122, 20590), (4060, 15833), (4118, 15610), (4460, 14413), (4970, 12934), (6244, 10295), (6467, 9940), (7805, 8236)]