25971490

素因数分解:

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

素因数の和:658

約数の個数: 32

約数和(自身を含む): 48614400

約数和(自身を除く): 22642910

約数列:

[1, 2, 5, 10, 31, 62, 155, 199, 310, 398, 421, 842, 995, 1990, 2105, 4210, 6169, 12338, 13051, 26102, 30845, 61690, 65255, 83779, 130510, 167558, 418895, 837790, 2597149, 5194298, 12985745, 25971490]

約数ペア:

[(1, 25971490), (2, 12985745), (5, 5194298), (10, 2597149), (31, 837790), (62, 418895), (155, 167558), (199, 130510), (310, 83779), (398, 65255), (421, 61690), (842, 30845), (995, 26102), (1990, 13051), (2105, 12338), (4210, 6169)]