670778875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 939189888

約数和(自身を除く): 268411013

約数列:

[1, 5, 13, 25, 61, 65, 67, 101, 125, 305, 325, 335, 505, 793, 871, 1313, 1525, 1625, 1675, 2525, 3965, 4087, 4355, 6161, 6565, 6767, 7625, 8375, 12625, 19825, 20435, 21775, 30805, 32825, 33835, 53131, 80093, 87971, 99125, 102175, 108875, 154025, 164125, 169175, 265655, 400465, 412787, 439855, 510875, 770125, 845875, 1328275, 2002325, 2063935, 2199275, 5366231, 6641375, 10011625, 10319675, 10996375, 26831155, 51598375, 134155775, 670778875]

約数ペア:

[(1, 670778875), (5, 134155775), (13, 51598375), (25, 26831155), (61, 10996375), (65, 10319675), (67, 10011625), (101, 6641375), (125, 5366231), (305, 2199275), (325, 2063935), (335, 2002325), (505, 1328275), (793, 845875), (871, 770125), (1313, 510875), (1525, 439855), (1625, 412787), (1675, 400465), (2525, 265655), (3965, 169175), (4087, 164125), (4355, 154025), (6161, 108875), (6565, 102175), (6767, 99125), (7625, 87971), (8375, 80093), (12625, 53131), (19825, 33835), (20435, 32825), (21775, 30805)]