398996968020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{949992781}}^1$

素因数の和:949992800

約数の個数: 48

約数和(自身を含む): 1276790299008

約数和(自身を除く): 877793330988

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, 949992781, 1899985562, 2849978343, 3799971124, 4749963905, 5699956686, 6649949467, 9499927810, 11399913372, 13299898934, 14249891715, 18999855620, 19949848401, 26599797868, 28499783430, 33249747335, 39899696802, 56999566860, 66499494670, 79799393604, 99749242005, 132998989340, 199498484010, 398996968020]

約数ペア:

[(1, 398996968020), (2, 199498484010), (3, 132998989340), (4, 99749242005), (5, 79799393604), (6, 66499494670), (7, 56999566860), (10, 39899696802), (12, 33249747335), (14, 28499783430), (15, 26599797868), (20, 19949848401), (21, 18999855620), (28, 14249891715), (30, 13299898934), (35, 11399913372), (42, 9499927810), (60, 6649949467), (70, 5699956686), (84, 4749963905), (105, 3799971124), (140, 2849978343), (210, 1899985562), (420, 949992781)]