20201545

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1531}}^1$

素因数の和:1585

約数の個数: 32

約数和(自身を含む): 30885120

約数和(自身を除く): 10683575

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1531, 1885, 2639, 7655, 10717, 13195, 19903, 44399, 53585, 99515, 139321, 221995, 310793, 577187, 696605, 1553965, 2885935, 4040309, 20201545]

約数ペア:

[(1, 20201545), (5, 4040309), (7, 2885935), (13, 1553965), (29, 696605), (35, 577187), (65, 310793), (91, 221995), (145, 139321), (203, 99515), (377, 53585), (455, 44399), (1015, 19903), (1531, 13195), (1885, 10717), (2639, 7655)]