20120370640

素因数分解:

$2^4\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{207341}}^1$

素因数の和:208567

約数の個数: 40

約数和(自身を含む): 46818652968

約数和(自身を除く): 26698282328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1213, 2426, 4852, 6065, 9704, 12130, 19408, 24260, 48520, 97040, 207341, 414682, 829364, 1036705, 1658728, 2073410, 3317456, 4146820, 8293640, 16587280, 251504633, 503009266, 1006018532, 1257523165, 2012037064, 2515046330, 4024074128, 5030092660, 10060185320, 20120370640]

約数ペア:

[(1, 20120370640), (2, 10060185320), (4, 5030092660), (5, 4024074128), (8, 2515046330), (10, 2012037064), (16, 1257523165), (20, 1006018532), (40, 503009266), (80, 251504633), (1213, 16587280), (2426, 8293640), (4852, 4146820), (6065, 3317456), (9704, 2073410), (12130, 1658728), (19408, 1036705), (24260, 829364), (48520, 414682), (97040, 207341)]