20121866870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4712381}}^1$

素因数の和:4712456

約数の個数: 32

約数和(自身を含む): 42072146496

約数和(自身を除く): 21950279626

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 4712381, 9424762, 23561905, 32986667, 47123810, 65973334, 164933335, 287455241, 329866670, 574910482, 1437276205, 2012186687, 2874552410, 4024373374, 10060933435, 20121866870]

約数ペア:

[(1, 20121866870), (2, 10060933435), (5, 4024373374), (7, 2874552410), (10, 2012186687), (14, 1437276205), (35, 574910482), (61, 329866670), (70, 287455241), (122, 164933335), (305, 65973334), (427, 47123810), (610, 32986667), (854, 23561905), (2135, 9424762), (4270, 4712381)]