400801380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{136327}}^1$

素因数の和:136353

約数の個数: 72

約数和(自身を含む): 1305476928

約数和(自身を除く): 904675548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 136327, 272654, 408981, 545308, 681635, 817962, 954289, 1363270, 1635924, 1908578, 2044905, 2726540, 2862867, 3817156, 4089810, 4771445, 5725734, 6680023, 8179620, 9542890, 11451468, 13360046, 14314335, 19085780, 20040069, 26720092, 28628670, 33400115, 40080138, 57257340, 66800230, 80160276, 100200345, 133600460, 200400690, 400801380]

約数ペア:

[(1, 400801380), (2, 200400690), (3, 133600460), (4, 100200345), (5, 80160276), (6, 66800230), (7, 57257340), (10, 40080138), (12, 33400115), (14, 28628670), (15, 26720092), (20, 20040069), (21, 19085780), (28, 14314335), (30, 13360046), (35, 11451468), (42, 9542890), (49, 8179620), (60, 6680023), (70, 5725734), (84, 4771445), (98, 4089810), (105, 3817156), (140, 2862867), (147, 2726540), (196, 2044905), (210, 1908578), (245, 1635924), (294, 1363270), (420, 954289), (490, 817962), (588, 681635), (735, 545308), (980, 408981), (1470, 272654), (2940, 136327)]