85101820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{433}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 185488128

約数和(自身を除く): 100386308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 317, 433, 620, 634, 866, 1268, 1585, 1732, 2165, 3170, 4330, 6340, 8660, 9827, 13423, 19654, 26846, 39308, 49135, 53692, 67115, 98270, 134230, 137261, 196540, 268460, 274522, 549044, 686305, 1372610, 2745220, 4255091, 8510182, 17020364, 21275455, 42550910, 85101820]

約数ペア:

[(1, 85101820), (2, 42550910), (4, 21275455), (5, 17020364), (10, 8510182), (20, 4255091), (31, 2745220), (62, 1372610), (124, 686305), (155, 549044), (310, 274522), (317, 268460), (433, 196540), (620, 137261), (634, 134230), (866, 98270), (1268, 67115), (1585, 53692), (1732, 49135), (2165, 39308), (3170, 26846), (4330, 19654), (6340, 13423), (8660, 9827)]