1638520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 4173120

約数和(自身を除く): 2534600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 137, 184, 230, 260, 274, 299, 460, 520, 548, 598, 685, 920, 1096, 1196, 1370, 1495, 1781, 2392, 2740, 2990, 3151, 3562, 5480, 5980, 6302, 7124, 8905, 11960, 12604, 14248, 15755, 17810, 25208, 31510, 35620, 40963, 63020, 71240, 81926, 126040, 163852, 204815, 327704, 409630, 819260, 1638520]

約数ペア:

[(1, 1638520), (2, 819260), (4, 409630), (5, 327704), (8, 204815), (10, 163852), (13, 126040), (20, 81926), (23, 71240), (26, 63020), (40, 40963), (46, 35620), (52, 31510), (65, 25208), (92, 17810), (104, 15755), (115, 14248), (130, 12604), (137, 11960), (184, 8905), (230, 7124), (260, 6302), (274, 5980), (299, 5480), (460, 3562), (520, 3151), (548, 2990), (598, 2740), (685, 2392), (920, 1781), (1096, 1495), (1196, 1370)]