256907665

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{1993}}^1$

素因数の和:2161

約数の個数: 32

約数和(自身を含む): 367534080

約数和(自身を除く): 110626415

約数列:

[1, 5, 7, 29, 35, 127, 145, 203, 635, 889, 1015, 1993, 3683, 4445, 9965, 13951, 18415, 25781, 57797, 69755, 128905, 253111, 288985, 404579, 1265555, 1771777, 2022895, 7340219, 8858885, 36701095, 51381533, 256907665]

約数ペア:

[(1, 256907665), (5, 51381533), (7, 36701095), (29, 8858885), (35, 7340219), (127, 2022895), (145, 1771777), (203, 1265555), (635, 404579), (889, 288985), (1015, 253111), (1993, 128905), (3683, 69755), (4445, 57797), (9965, 25781), (13951, 18415)]