89131820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{617}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 194358528

約数和(自身を除く): 105226708

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 233, 310, 466, 617, 620, 932, 1165, 1234, 2330, 2468, 3085, 4660, 6170, 7223, 12340, 14446, 19127, 28892, 36115, 38254, 72230, 76508, 95635, 143761, 144460, 191270, 287522, 382540, 575044, 718805, 1437610, 2875220, 4456591, 8913182, 17826364, 22282955, 44565910, 89131820]

約数ペア:

[(1, 89131820), (2, 44565910), (4, 22282955), (5, 17826364), (10, 8913182), (20, 4456591), (31, 2875220), (62, 1437610), (124, 718805), (155, 575044), (233, 382540), (310, 287522), (466, 191270), (617, 144460), (620, 143761), (932, 95635), (1165, 76508), (1234, 72230), (2330, 38254), (2468, 36115), (3085, 28892), (4660, 19127), (6170, 14446), (7223, 12340)]