18506800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3559}}^1$

素因数の和:3590

約数の個数: 60

約数和(自身を含む): 47896240

約数和(自身を除く): 29389440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3559, 5200, 7118, 14236, 17795, 28472, 35590, 46267, 56944, 71180, 88975, 92534, 142360, 177950, 185068, 231335, 284720, 355900, 370136, 462670, 711800, 740272, 925340, 1156675, 1423600, 1850680, 2313350, 3701360, 4626700, 9253400, 18506800]

約数ペア:

[(1, 18506800), (2, 9253400), (4, 4626700), (5, 3701360), (8, 2313350), (10, 1850680), (13, 1423600), (16, 1156675), (20, 925340), (25, 740272), (26, 711800), (40, 462670), (50, 370136), (52, 355900), (65, 284720), (80, 231335), (100, 185068), (104, 177950), (130, 142360), (200, 92534), (208, 88975), (260, 71180), (325, 56944), (400, 46267), (520, 35590), (650, 28472), (1040, 17795), (1300, 14236), (2600, 7118), (3559, 5200)]