221443640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{463}}^1\times {\mathrm{1087}}^1$

素因数の和:1572

約数の個数: 64

約数和(自身を含む): 545218560

約数和(自身を除く): 323774920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 463, 926, 1087, 1852, 2174, 2315, 3704, 4348, 4630, 5093, 5435, 8696, 9260, 10186, 10870, 11957, 18520, 20372, 21740, 23914, 25465, 40744, 43480, 47828, 50930, 59785, 95656, 101860, 119570, 203720, 239140, 478280, 503281, 1006562, 2013124, 2516405, 4026248, 5032810, 5536091, 10065620, 11072182, 20131240, 22144364, 27680455, 44288728, 55360910, 110721820, 221443640]

約数ペア:

[(1, 221443640), (2, 110721820), (4, 55360910), (5, 44288728), (8, 27680455), (10, 22144364), (11, 20131240), (20, 11072182), (22, 10065620), (40, 5536091), (44, 5032810), (55, 4026248), (88, 2516405), (110, 2013124), (220, 1006562), (440, 503281), (463, 478280), (926, 239140), (1087, 203720), (1852, 119570), (2174, 101860), (2315, 95656), (3704, 59785), (4348, 50930), (4630, 47828), (5093, 43480), (5435, 40744), (8696, 25465), (9260, 23914), (10186, 21740), (10870, 20372), (11957, 18520)]