689426660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{8011}}^1$

素因数の和:8364

約数の個数: 48

約数和(自身を含む): 1564070592

約数和(自身を除く): 874643932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 331, 662, 1324, 1655, 3310, 4303, 6620, 8011, 8606, 16022, 17212, 21515, 32044, 40055, 43030, 80110, 86060, 104143, 160220, 208286, 416572, 520715, 1041430, 2082860, 2651641, 5303282, 10606564, 13258205, 26516410, 34471333, 53032820, 68942666, 137885332, 172356665, 344713330, 689426660]

約数ペア:

[(1, 689426660), (2, 344713330), (4, 172356665), (5, 137885332), (10, 68942666), (13, 53032820), (20, 34471333), (26, 26516410), (52, 13258205), (65, 10606564), (130, 5303282), (260, 2651641), (331, 2082860), (662, 1041430), (1324, 520715), (1655, 416572), (3310, 208286), (4303, 160220), (6620, 104143), (8011, 86060), (8606, 80110), (16022, 43030), (17212, 40055), (21515, 32044)]