640464

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{1213}}^1$

素因数の和:1235

約数の個数: 40

約数和(自身を含む): 1806432

約数和(自身を除く): 1165968

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528, 1213, 2426, 3639, 4852, 7278, 9704, 13343, 14556, 19408, 26686, 29112, 40029, 53372, 58224, 80058, 106744, 160116, 213488, 320232, 640464]

約数ペア:

[(1, 640464), (2, 320232), (3, 213488), (4, 160116), (6, 106744), (8, 80058), (11, 58224), (12, 53372), (16, 40029), (22, 29112), (24, 26686), (33, 19408), (44, 14556), (48, 13343), (66, 9704), (88, 7278), (132, 4852), (176, 3639), (264, 2426), (528, 1213)]