20405330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1801}}^1$

素因数の和:1922

約数の個数: 32

約数和(自身を含む): 40480128

約数和(自身を除く): 20074798

約数列:

[1, 2, 5, 10, 11, 22, 55, 103, 110, 206, 515, 1030, 1133, 1801, 2266, 3602, 5665, 9005, 11330, 18010, 19811, 39622, 99055, 185503, 198110, 371006, 927515, 1855030, 2040533, 4081066, 10202665, 20405330]

約数ペア:

[(1, 20405330), (2, 10202665), (5, 4081066), (10, 2040533), (11, 1855030), (22, 927515), (55, 371006), (103, 198110), (110, 185503), (206, 99055), (515, 39622), (1030, 19811), (1133, 18010), (1801, 11330), (2266, 9005), (3602, 5665)]