1618441630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{499}}^1$

素因数の和:989

約数の個数: 64

約数和(自身を含む): 3202920000

約数和(自身を除く): 1584478370

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 409, 499, 610, 793, 818, 998, 1586, 2045, 2495, 3965, 4090, 4990, 5317, 6487, 7930, 10634, 12974, 24949, 26585, 30439, 32435, 49898, 53170, 60878, 64870, 124745, 152195, 204091, 249490, 304390, 324337, 395707, 408182, 648674, 791414, 1020455, 1621685, 1978535, 2040910, 2653183, 3243370, 3957070, 5306366, 12449551, 13265915, 24899102, 26531830, 62247755, 124495510, 161844163, 323688326, 809220815, 1618441630]

約数ペア:

[(1, 1618441630), (2, 809220815), (5, 323688326), (10, 161844163), (13, 124495510), (26, 62247755), (61, 26531830), (65, 24899102), (122, 13265915), (130, 12449551), (305, 5306366), (409, 3957070), (499, 3243370), (610, 2653183), (793, 2040910), (818, 1978535), (998, 1621685), (1586, 1020455), (2045, 791414), (2495, 648674), (3965, 408182), (4090, 395707), (4990, 324337), (5317, 304390), (6487, 249490), (7930, 204091), (10634, 152195), (12974, 124745), (24949, 64870), (26585, 60878), (30439, 53170), (32435, 49898)]