20008380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47639}}^1$

素因数の和:47658

約数の個数: 48

約数和(自身を含む): 64028160

約数和(自身を除く): 44019780

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, 47639, 95278, 142917, 190556, 238195, 285834, 333473, 476390, 571668, 666946, 714585, 952780, 1000419, 1333892, 1429170, 1667365, 2000838, 2858340, 3334730, 4001676, 5002095, 6669460, 10004190, 20008380]

約数ペア:

[(1, 20008380), (2, 10004190), (3, 6669460), (4, 5002095), (5, 4001676), (6, 3334730), (7, 2858340), (10, 2000838), (12, 1667365), (14, 1429170), (15, 1333892), (20, 1000419), (21, 952780), (28, 714585), (30, 666946), (35, 571668), (42, 476390), (60, 333473), (70, 285834), (84, 238195), (105, 190556), (140, 142917), (210, 95278), (420, 47639)]