420405720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{500483}}^1$

素因数の和:500504

約数の個数: 64

約数和(自身を含む): 1441393920

約数和(自身を除く): 1020988200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 500483, 1000966, 1501449, 2001932, 2502415, 3002898, 3503381, 4003864, 5004830, 6005796, 7006762, 7507245, 10009660, 10510143, 12011592, 14013524, 15014490, 17516905, 20019320, 21020286, 28027048, 30028980, 35033810, 42040572, 52550715, 60057960, 70067620, 84081144, 105101430, 140135240, 210202860, 420405720]

約数ペア:

[(1, 420405720), (2, 210202860), (3, 140135240), (4, 105101430), (5, 84081144), (6, 70067620), (7, 60057960), (8, 52550715), (10, 42040572), (12, 35033810), (14, 30028980), (15, 28027048), (20, 21020286), (21, 20019320), (24, 17516905), (28, 15014490), (30, 14013524), (35, 12011592), (40, 10510143), (42, 10009660), (56, 7507245), (60, 7006762), (70, 6005796), (84, 5004830), (105, 4003864), (120, 3503381), (140, 3002898), (168, 2502415), (210, 2001932), (280, 1501449), (420, 1000966), (840, 500483)]