18770050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 38247552

約数和(自身を除く): 19477502

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 67, 130, 134, 325, 335, 431, 650, 670, 862, 871, 1675, 1742, 2155, 3350, 4310, 4355, 5603, 8710, 10775, 11206, 21550, 21775, 28015, 28877, 43550, 56030, 57754, 140075, 144385, 280150, 288770, 375401, 721925, 750802, 1443850, 1877005, 3754010, 9385025, 18770050]

約数ペア:

[(1, 18770050), (2, 9385025), (5, 3754010), (10, 1877005), (13, 1443850), (25, 750802), (26, 721925), (50, 375401), (65, 288770), (67, 280150), (130, 144385), (134, 140075), (325, 57754), (335, 56030), (431, 43550), (650, 28877), (670, 28015), (862, 21775), (871, 21550), (1675, 11206), (1742, 10775), (2155, 8710), (3350, 5603), (4310, 4355)]