81080680

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{4397}}^1$

素因数の和:4869

約数の個数: 32

約数和(自身を含む): 182868840

約数和(自身を除く): 101788160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3688, 4397, 4610, 8794, 9220, 17588, 18440, 21985, 35176, 43970, 87940, 175880, 2027017, 4054034, 8108068, 10135085, 16216136, 20270170, 40540340, 81080680]

約数ペア:

[(1, 81080680), (2, 40540340), (4, 20270170), (5, 16216136), (8, 10135085), (10, 8108068), (20, 4054034), (40, 2027017), (461, 175880), (922, 87940), (1844, 43970), (2305, 35176), (3688, 21985), (4397, 18440), (4610, 17588), (8794, 9220)]