223081780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1\times {\mathrm{521}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 477066240

約数和(自身を除く): 253984460

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 271, 316, 395, 521, 542, 790, 1042, 1084, 1355, 1580, 2084, 2605, 2710, 5210, 5420, 10420, 21409, 41159, 42818, 82318, 85636, 107045, 141191, 164636, 205795, 214090, 282382, 411590, 428180, 564764, 705955, 823180, 1411910, 2823820, 11154089, 22308178, 44616356, 55770445, 111540890, 223081780]

約数ペア:

[(1, 223081780), (2, 111540890), (4, 55770445), (5, 44616356), (10, 22308178), (20, 11154089), (79, 2823820), (158, 1411910), (271, 823180), (316, 705955), (395, 564764), (521, 428180), (542, 411590), (790, 282382), (1042, 214090), (1084, 205795), (1355, 164636), (1580, 141191), (2084, 107045), (2605, 85636), (2710, 82318), (5210, 42818), (5420, 41159), (10420, 21409)]