125491640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{51431}}^1$

素因数の和:51503

約数の個数: 32

約数和(自身を含む): 286990560

約数和(自身を除く): 161498920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 51431, 102862, 205724, 257155, 411448, 514310, 1028620, 2057240, 3137291, 6274582, 12549164, 15686455, 25098328, 31372910, 62745820, 125491640]

約数ペア:

[(1, 125491640), (2, 62745820), (4, 31372910), (5, 25098328), (8, 15686455), (10, 12549164), (20, 6274582), (40, 3137291), (61, 2057240), (122, 1028620), (244, 514310), (305, 411448), (488, 257155), (610, 205724), (1220, 102862), (2440, 51431)]