318798040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1721}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 784818720

約数和(自身を除く): 466020680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 421, 440, 842, 1684, 1721, 2105, 3368, 3442, 4210, 4631, 6884, 8420, 8605, 9262, 13768, 16840, 17210, 18524, 18931, 23155, 34420, 37048, 37862, 46310, 68840, 75724, 92620, 94655, 151448, 185240, 189310, 378620, 724541, 757240, 1449082, 2898164, 3622705, 5796328, 7245410, 7969951, 14490820, 15939902, 28981640, 31879804, 39849755, 63759608, 79699510, 159399020, 318798040]

約数ペア:

[(1, 318798040), (2, 159399020), (4, 79699510), (5, 63759608), (8, 39849755), (10, 31879804), (11, 28981640), (20, 15939902), (22, 14490820), (40, 7969951), (44, 7245410), (55, 5796328), (88, 3622705), (110, 2898164), (220, 1449082), (421, 757240), (440, 724541), (842, 378620), (1684, 189310), (1721, 185240), (2105, 151448), (3368, 94655), (3442, 92620), (4210, 75724), (4631, 68840), (6884, 46310), (8420, 37862), (8605, 37048), (9262, 34420), (13768, 23155), (16840, 18931), (17210, 18524)]