4321960

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{647}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 9797760

約数和(自身を除く): 5475800

約数列:

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

約数ペア:

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