265514405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{977}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 355882464

約数和(自身を除く): 90368059

約数列:

[1, 5, 13, 37, 65, 113, 185, 481, 565, 977, 1469, 2405, 4181, 4885, 7345, 12701, 20905, 36149, 54353, 63505, 110401, 180745, 271765, 469937, 552005, 1435213, 2349685, 4084837, 7176065, 20424185, 53102881, 265514405]

約数ペア:

[(1, 265514405), (5, 53102881), (13, 20424185), (37, 7176065), (65, 4084837), (113, 2349685), (185, 1435213), (481, 552005), (565, 469937), (977, 271765), (1469, 180745), (2405, 110401), (4181, 63505), (4885, 54353), (7345, 36149), (12701, 20905)]