18315700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 43613528

約数和(自身を除く): 25297828

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 73, 100, 130, 146, 193, 260, 292, 325, 365, 386, 650, 730, 772, 949, 965, 1300, 1460, 1825, 1898, 1930, 2509, 3650, 3796, 3860, 4745, 4825, 5018, 7300, 9490, 9650, 10036, 12545, 14089, 18980, 19300, 23725, 25090, 28178, 47450, 50180, 56356, 62725, 70445, 94900, 125450, 140890, 183157, 250900, 281780, 352225, 366314, 704450, 732628, 915785, 1408900, 1831570, 3663140, 4578925, 9157850, 18315700]

約数ペア:

[(1, 18315700), (2, 9157850), (4, 4578925), (5, 3663140), (10, 1831570), (13, 1408900), (20, 915785), (25, 732628), (26, 704450), (50, 366314), (52, 352225), (65, 281780), (73, 250900), (100, 183157), (130, 140890), (146, 125450), (193, 94900), (260, 70445), (292, 62725), (325, 56356), (365, 50180), (386, 47450), (650, 28178), (730, 25090), (772, 23725), (949, 19300), (965, 18980), (1300, 14089), (1460, 12545), (1825, 10036), (1898, 9650), (1930, 9490), (2509, 7300), (3650, 5018), (3796, 4825), (3860, 4745)]