85910920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{877}}^1$

素因数の和:998

約数の個数: 64

約数和(自身を含む): 202291200

約数和(自身を除く): 116380280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 124, 155, 158, 248, 310, 316, 395, 620, 632, 790, 877, 1240, 1580, 1754, 2449, 3160, 3508, 4385, 4898, 7016, 8770, 9796, 12245, 17540, 19592, 24490, 27187, 35080, 48980, 54374, 69283, 97960, 108748, 135935, 138566, 217496, 271870, 277132, 346415, 543740, 554264, 692830, 1087480, 1385660, 2147773, 2771320, 4295546, 8591092, 10738865, 17182184, 21477730, 42955460, 85910920]

約数ペア:

[(1, 85910920), (2, 42955460), (4, 21477730), (5, 17182184), (8, 10738865), (10, 8591092), (20, 4295546), (31, 2771320), (40, 2147773), (62, 1385660), (79, 1087480), (124, 692830), (155, 554264), (158, 543740), (248, 346415), (310, 277132), (316, 271870), (395, 217496), (620, 138566), (632, 135935), (790, 108748), (877, 97960), (1240, 69283), (1580, 54374), (1754, 48980), (2449, 35080), (3160, 27187), (3508, 24490), (4385, 19592), (4898, 17540), (7016, 12245), (8770, 9796)]