16447640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1289}}^1$

素因数の和:1340

約数の個数: 64

約数和(自身を含む): 41796000

約数和(自身を除く): 25348360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1289, 1595, 2552, 2578, 3190, 5156, 6380, 6445, 10312, 12760, 12890, 14179, 25780, 28358, 37381, 51560, 56716, 70895, 74762, 113432, 141790, 149524, 186905, 283580, 299048, 373810, 411191, 567160, 747620, 822382, 1495240, 1644764, 2055955, 3289528, 4111910, 8223820, 16447640]

約数ペア:

[(1, 16447640), (2, 8223820), (4, 4111910), (5, 3289528), (8, 2055955), (10, 1644764), (11, 1495240), (20, 822382), (22, 747620), (29, 567160), (40, 411191), (44, 373810), (55, 299048), (58, 283580), (88, 186905), (110, 149524), (116, 141790), (145, 113432), (220, 74762), (232, 70895), (290, 56716), (319, 51560), (440, 37381), (580, 28358), (638, 25780), (1160, 14179), (1276, 12890), (1289, 12760), (1595, 10312), (2552, 6445), (2578, 6380), (3190, 5156)]