31461980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1723}}^1$

素因数の和:1826

約数の個数: 48

約数和(自身を含む): 72987264

約数和(自身を除く): 41525284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1660, 1723, 1826, 3446, 3652, 4565, 6892, 8615, 9130, 17230, 18260, 18953, 34460, 37906, 75812, 94765, 143009, 189530, 286018, 379060, 572036, 715045, 1430090, 1573099, 2860180, 3146198, 6292396, 7865495, 15730990, 31461980]

約数ペア:

[(1, 31461980), (2, 15730990), (4, 7865495), (5, 6292396), (10, 3146198), (11, 2860180), (20, 1573099), (22, 1430090), (44, 715045), (55, 572036), (83, 379060), (110, 286018), (166, 189530), (220, 143009), (332, 94765), (415, 75812), (830, 37906), (913, 34460), (1660, 18953), (1723, 18260), (1826, 17230), (3446, 9130), (3652, 8615), (4565, 6892)]