12957420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{30851}}^1$

素因数の和:30870

約数の個数: 48

約数和(自身を含む): 41465088

約数和(自身を除く): 28507668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 30851, 61702, 92553, 123404, 154255, 185106, 215957, 308510, 370212, 431914, 462765, 617020, 647871, 863828, 925530, 1079785, 1295742, 1851060, 2159570, 2591484, 3239355, 4319140, 6478710, 12957420]

約数ペア:

[(1, 12957420), (2, 6478710), (3, 4319140), (4, 3239355), (5, 2591484), (6, 2159570), (7, 1851060), (10, 1295742), (12, 1079785), (14, 925530), (15, 863828), (20, 647871), (21, 617020), (28, 462765), (30, 431914), (35, 370212), (42, 308510), (60, 215957), (70, 185106), (84, 154255), (105, 123404), (140, 92553), (210, 61702), (420, 30851)]