20357640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{293}}^1$

素因数の和:503

約数の個数: 96

約数和(自身を含む): 66732120

約数和(自身を除く): 46374480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 193, 293, 360, 386, 579, 586, 772, 879, 965, 1158, 1172, 1465, 1544, 1737, 1758, 1930, 2316, 2344, 2637, 2895, 2930, 3474, 3516, 3860, 4395, 4632, 5274, 5790, 5860, 6948, 7032, 7720, 8685, 8790, 10548, 11580, 11720, 13185, 13896, 17370, 17580, 21096, 23160, 26370, 34740, 35160, 52740, 56549, 69480, 105480, 113098, 169647, 226196, 282745, 339294, 452392, 508941, 565490, 678588, 848235, 1017882, 1130980, 1357176, 1696470, 2035764, 2261960, 2544705, 3392940, 4071528, 5089410, 6785880, 10178820, 20357640]

約数ペア:

[(1, 20357640), (2, 10178820), (3, 6785880), (4, 5089410), (5, 4071528), (6, 3392940), (8, 2544705), (9, 2261960), (10, 2035764), (12, 1696470), (15, 1357176), (18, 1130980), (20, 1017882), (24, 848235), (30, 678588), (36, 565490), (40, 508941), (45, 452392), (60, 339294), (72, 282745), (90, 226196), (120, 169647), (180, 113098), (193, 105480), (293, 69480), (360, 56549), (386, 52740), (579, 35160), (586, 34740), (772, 26370), (879, 23160), (965, 21096), (1158, 17580), (1172, 17370), (1465, 13896), (1544, 13185), (1737, 11720), (1758, 11580), (1930, 10548), (2316, 8790), (2344, 8685), (2637, 7720), (2895, 7032), (2930, 6948), (3474, 5860), (3516, 5790), (3860, 5274), (4395, 4632)]