815206490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{5861}}^1$

素因数の和:7862

約数の個数: 32

約数和(自身を含む): 1678126464

約数和(自身を除く): 862919974

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1987, 3974, 5861, 9935, 11722, 13909, 19870, 27818, 29305, 41027, 58610, 69545, 82054, 139090, 205135, 410270, 11645807, 23291614, 58229035, 81520649, 116458070, 163041298, 407603245, 815206490]

約数ペア:

[(1, 815206490), (2, 407603245), (5, 163041298), (7, 116458070), (10, 81520649), (14, 58229035), (35, 23291614), (70, 11645807), (1987, 410270), (3974, 205135), (5861, 139090), (9935, 82054), (11722, 69545), (13909, 58610), (19870, 41027), (27818, 29305)]