291298475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 415806720

約数和(自身を除く): 124508245

約数列:

[1, 5, 13, 25, 29, 31, 65, 145, 155, 325, 377, 403, 725, 775, 899, 997, 1885, 2015, 4495, 4985, 9425, 10075, 11687, 12961, 22475, 24925, 28913, 30907, 58435, 64805, 144565, 154535, 292175, 324025, 375869, 401791, 722825, 772675, 896303, 1879345, 2008955, 4481515, 9396725, 10044775, 11651939, 22407575, 58259695, 291298475]

約数ペア:

[(1, 291298475), (5, 58259695), (13, 22407575), (25, 11651939), (29, 10044775), (31, 9396725), (65, 4481515), (145, 2008955), (155, 1879345), (325, 896303), (377, 772675), (403, 722825), (725, 401791), (775, 375869), (899, 324025), (997, 292175), (1885, 154535), (2015, 144565), (4495, 64805), (4985, 58435), (9425, 30907), (10075, 28913), (11687, 24925), (12961, 22475)]