15786640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4813}}^1$

素因数の和:4867

約数の個数: 40

約数和(自身を含む): 37606968

約数和(自身を除く): 21820328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 4813, 9626, 19252, 24065, 38504, 48130, 77008, 96260, 192520, 197333, 385040, 394666, 789332, 986665, 1578664, 1973330, 3157328, 3946660, 7893320, 15786640]

約数ペア:

[(1, 15786640), (2, 7893320), (4, 3946660), (5, 3157328), (8, 1973330), (10, 1578664), (16, 986665), (20, 789332), (40, 394666), (41, 385040), (80, 197333), (82, 192520), (164, 96260), (205, 77008), (328, 48130), (410, 38504), (656, 24065), (820, 19252), (1640, 9626), (3280, 4813)]