8643920

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{647}}^1$

素因数の和:827

約数の個数: 40

約数和(自身を含む): 20248704

約数和(自身を除く): 11604784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 647, 668, 835, 1294, 1336, 1670, 2588, 2672, 3235, 3340, 5176, 6470, 6680, 10352, 12940, 13360, 25880, 51760, 108049, 216098, 432196, 540245, 864392, 1080490, 1728784, 2160980, 4321960, 8643920]

約数ペア:

[(1, 8643920), (2, 4321960), (4, 2160980), (5, 1728784), (8, 1080490), (10, 864392), (16, 540245), (20, 432196), (40, 216098), (80, 108049), (167, 51760), (334, 25880), (647, 13360), (668, 12940), (835, 10352), (1294, 6680), (1336, 6470), (1670, 5176), (2588, 3340), (2672, 3235)]