20668380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8011}}^1$

素因数の和:8066

約数の個数: 48

約数和(自身を含む): 59224704

約数和(自身を除く): 38556324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8011, 16022, 24033, 32044, 40055, 48066, 80110, 96132, 120165, 160220, 240330, 344473, 480660, 688946, 1033419, 1377892, 1722365, 2066838, 3444730, 4133676, 5167095, 6889460, 10334190, 20668380]

約数ペア:

[(1, 20668380), (2, 10334190), (3, 6889460), (4, 5167095), (5, 4133676), (6, 3444730), (10, 2066838), (12, 1722365), (15, 1377892), (20, 1033419), (30, 688946), (43, 480660), (60, 344473), (86, 240330), (129, 160220), (172, 120165), (215, 96132), (258, 80110), (430, 48066), (516, 40055), (645, 32044), (860, 24033), (1290, 16022), (2580, 8011)]