20084920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3833}}^1$

素因数の和:3975

約数の個数: 32

約数和(自身を含む): 45547920

約数和(自身を除く): 25463000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3833, 5240, 7666, 15332, 19165, 30664, 38330, 76660, 153320, 502123, 1004246, 2008492, 2510615, 4016984, 5021230, 10042460, 20084920]

約数ペア:

[(1, 20084920), (2, 10042460), (4, 5021230), (5, 4016984), (8, 2510615), (10, 2008492), (20, 1004246), (40, 502123), (131, 153320), (262, 76660), (524, 38330), (655, 30664), (1048, 19165), (1310, 15332), (2620, 7666), (3833, 5240)]