80107640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32831}}^1$

素因数の和:32903

約数の個数: 32

約数和(自身を含む): 183202560

約数和(自身を除く): 103094920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 32831, 65662, 131324, 164155, 262648, 328310, 656620, 1313240, 2002691, 4005382, 8010764, 10013455, 16021528, 20026910, 40053820, 80107640]

約数ペア:

[(1, 80107640), (2, 40053820), (4, 20026910), (5, 16021528), (8, 10013455), (10, 8010764), (20, 4005382), (40, 2002691), (61, 1313240), (122, 656620), (244, 328310), (305, 262648), (488, 164155), (610, 131324), (1220, 65662), (2440, 32831)]