20328110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1021}}^1$

素因数の和:1220

約数の個数: 32

約数和(自身を含む): 40176864

約数和(自身を除く): 19848754

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181, 362, 905, 1021, 1810, 1991, 2042, 3982, 5105, 9955, 10210, 11231, 19910, 22462, 56155, 112310, 184801, 369602, 924005, 1848010, 2032811, 4065622, 10164055, 20328110]

約数ペア:

[(1, 20328110), (2, 10164055), (5, 4065622), (10, 2032811), (11, 1848010), (22, 924005), (55, 369602), (110, 184801), (181, 112310), (362, 56155), (905, 22462), (1021, 19910), (1810, 11231), (1991, 10210), (2042, 9955), (3982, 5105)]