489492760

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{19963}}^1$

素因数の和:20587

約数の個数: 32

約数和(自身を含む): 1103210640

約数和(自身を除く): 613717880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 3065, 4904, 6130, 12260, 19963, 24520, 39926, 79852, 99815, 159704, 199630, 399260, 798520, 12237319, 24474638, 48949276, 61186595, 97898552, 122373190, 244746380, 489492760]

約数ペア:

[(1, 489492760), (2, 244746380), (4, 122373190), (5, 97898552), (8, 61186595), (10, 48949276), (20, 24474638), (40, 12237319), (613, 798520), (1226, 399260), (2452, 199630), (3065, 159704), (4904, 99815), (6130, 79852), (12260, 39926), (19963, 24520)]