85440680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164309}}^1$

素因数の和:164333

約数の個数: 32

約数和(自身を含む): 207030600

約数和(自身を除く): 121589920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 164309, 328618, 657236, 821545, 1314472, 1643090, 2136017, 3286180, 4272034, 6572360, 8544068, 10680085, 17088136, 21360170, 42720340, 85440680]

約数ペア:

[(1, 85440680), (2, 42720340), (4, 21360170), (5, 17088136), (8, 10680085), (10, 8544068), (13, 6572360), (20, 4272034), (26, 3286180), (40, 2136017), (52, 1643090), (65, 1314472), (104, 821545), (130, 657236), (260, 328618), (520, 164309)]