641330805

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{8821}}^1$

素因数の和:8997

約数の個数: 32

約数和(自身を含む): 1062027648

約数和(自身を除く): 420696843

約数列:

[1, 3, 5, 15, 37, 111, 131, 185, 393, 555, 655, 1965, 4847, 8821, 14541, 24235, 26463, 44105, 72705, 132315, 326377, 979131, 1155551, 1631885, 3466653, 4895655, 5777755, 17333265, 42755387, 128266161, 213776935, 641330805]

約数ペア:

[(1, 641330805), (3, 213776935), (5, 128266161), (15, 42755387), (37, 17333265), (111, 5777755), (131, 4895655), (185, 3466653), (393, 1631885), (555, 1155551), (655, 979131), (1965, 326377), (4847, 132315), (8821, 72705), (14541, 44105), (24235, 26463)]