385039640

素因数分解:

$2^3\times 5^1\times {\mathrm{907}}^1\times {\mathrm{10613}}^1$

素因数の和:11531

約数の個数: 32

約数和(自身を含む): 867376080

約数和(自身を除く): 482336440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 907, 1814, 3628, 4535, 7256, 9070, 10613, 18140, 21226, 36280, 42452, 53065, 84904, 106130, 212260, 424520, 9625991, 19251982, 38503964, 48129955, 77007928, 96259910, 192519820, 385039640]

約数ペア:

[(1, 385039640), (2, 192519820), (4, 96259910), (5, 77007928), (8, 48129955), (10, 38503964), (20, 19251982), (40, 9625991), (907, 424520), (1814, 212260), (3628, 106130), (4535, 84904), (7256, 53065), (9070, 42452), (10613, 36280), (18140, 21226)]