51942980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 113433600

約数和(自身を除く): 61490620

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 199, 310, 398, 421, 620, 796, 842, 995, 1684, 1990, 2105, 3980, 4210, 6169, 8420, 12338, 13051, 24676, 26102, 30845, 52204, 61690, 65255, 83779, 123380, 130510, 167558, 261020, 335116, 418895, 837790, 1675580, 2597149, 5194298, 10388596, 12985745, 25971490, 51942980]

約数ペア:

[(1, 51942980), (2, 25971490), (4, 12985745), (5, 10388596), (10, 5194298), (20, 2597149), (31, 1675580), (62, 837790), (124, 418895), (155, 335116), (199, 261020), (310, 167558), (398, 130510), (421, 123380), (620, 83779), (796, 65255), (842, 61690), (995, 52204), (1684, 30845), (1990, 26102), (2105, 24676), (3980, 13051), (4210, 12338), (6169, 8420)]