31387850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1123}}^1$

素因数の和:1191

約数の個数: 48

約数和(自身を含む): 64391712

約数和(自身を除く): 33003862

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 1075, 1118, 1123, 2150, 2246, 2795, 5590, 5615, 11230, 13975, 14599, 27950, 28075, 29198, 48289, 56150, 72995, 96578, 145990, 241445, 364975, 482890, 627757, 729950, 1207225, 1255514, 2414450, 3138785, 6277570, 15693925, 31387850]

約数ペア:

[(1, 31387850), (2, 15693925), (5, 6277570), (10, 3138785), (13, 2414450), (25, 1255514), (26, 1207225), (43, 729950), (50, 627757), (65, 482890), (86, 364975), (130, 241445), (215, 145990), (325, 96578), (430, 72995), (559, 56150), (650, 48289), (1075, 29198), (1118, 28075), (1123, 27950), (2150, 14599), (2246, 13975), (2795, 11230), (5590, 5615)]