407890405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{5471}}^1$

素因数の和:5557

約数の個数: 32

約数和(自身を含む): 558931968

約数和(自身を除く): 151041563

約数列:

[1, 5, 13, 31, 37, 65, 155, 185, 403, 481, 1147, 2015, 2405, 5471, 5735, 14911, 27355, 71123, 74555, 169601, 202427, 355615, 848005, 1012135, 2204813, 2631551, 6275237, 11024065, 13157755, 31376185, 81578081, 407890405]

約数ペア:

[(1, 407890405), (5, 81578081), (13, 31376185), (31, 13157755), (37, 11024065), (65, 6275237), (155, 2631551), (185, 2204813), (403, 1012135), (481, 848005), (1147, 355615), (2015, 202427), (2405, 169601), (5471, 74555), (5735, 71123), (14911, 27355)]