20120863760

素因数分解:

$2^4\times 5^1\times {\mathrm{251510797}}^1$

素因数の和:251510810

約数の個数: 20

約数和(自身を含む): 46781008428

約数和(自身を除く): 26660144668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251510797, 503021594, 1006043188, 1257553985, 2012086376, 2515107970, 4024172752, 5030215940, 10060431880, 20120863760]

約数ペア:

[(1, 20120863760), (2, 10060431880), (4, 5030215940), (5, 4024172752), (8, 2515107970), (10, 2012086376), (16, 1257553985), (20, 1006043188), (40, 503021594), (80, 251510797)]