20583475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 36

約数和(自身を含む): 29161080

約数和(自身を除く): 8577605

約数列:

[1, 5, 11, 25, 29, 55, 89, 145, 275, 319, 445, 725, 841, 979, 1595, 2225, 2581, 4205, 4895, 7975, 9251, 12905, 21025, 24475, 28391, 46255, 64525, 74849, 141955, 231275, 374245, 709775, 823339, 1871225, 4116695, 20583475]

約数ペア:

[(1, 20583475), (5, 4116695), (11, 1871225), (25, 823339), (29, 709775), (55, 374245), (89, 231275), (145, 141955), (275, 74849), (319, 64525), (445, 46255), (725, 28391), (841, 24475), (979, 21025), (1595, 12905), (2225, 9251), (2581, 7975), (4205, 4895)]