397701860

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{317}}^1\times {\mathrm{421}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 845434800

約数和(自身を除く): 447732940

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 317, 421, 596, 634, 745, 842, 1268, 1490, 1585, 1684, 2105, 2980, 3170, 4210, 6340, 8420, 47233, 62729, 94466, 125458, 133457, 188932, 236165, 250916, 266914, 313645, 472330, 533828, 627290, 667285, 944660, 1254580, 1334570, 2669140, 19885093, 39770186, 79540372, 99425465, 198850930, 397701860]

約数ペア:

[(1, 397701860), (2, 198850930), (4, 99425465), (5, 79540372), (10, 39770186), (20, 19885093), (149, 2669140), (298, 1334570), (317, 1254580), (421, 944660), (596, 667285), (634, 627290), (745, 533828), (842, 472330), (1268, 313645), (1490, 266914), (1585, 250916), (1684, 236165), (2105, 188932), (2980, 133457), (3170, 125458), (4210, 94466), (6340, 62729), (8420, 47233)]