647974405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1\times {\mathrm{907}}^1$

素因数の和:1333

約数の個数: 32

約数和(自身を含む): 869500800

約数和(自身を除く): 221526395

約数列:

[1, 5, 13, 29, 65, 145, 377, 379, 907, 1885, 1895, 4535, 4927, 10991, 11791, 24635, 26303, 54955, 58955, 131515, 142883, 341939, 343753, 714415, 1709695, 1718765, 4468789, 9968837, 22343945, 49844185, 129594881, 647974405]

約数ペア:

[(1, 647974405), (5, 129594881), (13, 49844185), (29, 22343945), (65, 9968837), (145, 4468789), (377, 1718765), (379, 1709695), (907, 714415), (1885, 343753), (1895, 341939), (4535, 142883), (4927, 131515), (10991, 58955), (11791, 54955), (24635, 26303)]