180813100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^3\times {\mathrm{823}}^1$

素因数の和:876

約数の個数: 72

約数和(自身を含む): 425563040

約数和(自身を除く): 244749940

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 823, 845, 1300, 1646, 1690, 2197, 3292, 3380, 4115, 4225, 4394, 8230, 8450, 8788, 10699, 10985, 16460, 16900, 20575, 21398, 21970, 41150, 42796, 43940, 53495, 54925, 82300, 106990, 109850, 139087, 213980, 219700, 267475, 278174, 534950, 556348, 695435, 1069900, 1390870, 1808131, 2781740, 3477175, 3616262, 6954350, 7232524, 9040655, 13908700, 18081310, 36162620, 45203275, 90406550, 180813100]

約数ペア:

[(1, 180813100), (2, 90406550), (4, 45203275), (5, 36162620), (10, 18081310), (13, 13908700), (20, 9040655), (25, 7232524), (26, 6954350), (50, 3616262), (52, 3477175), (65, 2781740), (100, 1808131), (130, 1390870), (169, 1069900), (260, 695435), (325, 556348), (338, 534950), (650, 278174), (676, 267475), (823, 219700), (845, 213980), (1300, 139087), (1646, 109850), (1690, 106990), (2197, 82300), (3292, 54925), (3380, 53495), (4115, 43940), (4225, 42796), (4394, 41150), (8230, 21970), (8450, 21398), (8788, 20575), (10699, 16900), (10985, 16460)]