27771250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1709}}^1$

素因数の和:1744

約数の個数: 40

約数和(自身を含む): 56091420

約数和(自身を除く): 28320170

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 1709, 3250, 3418, 8125, 8545, 16250, 17090, 22217, 42725, 44434, 85450, 111085, 213625, 222170, 427250, 555425, 1068125, 1110850, 2136250, 2777125, 5554250, 13885625, 27771250]

約数ペア:

[(1, 27771250), (2, 13885625), (5, 5554250), (10, 2777125), (13, 2136250), (25, 1110850), (26, 1068125), (50, 555425), (65, 427250), (125, 222170), (130, 213625), (250, 111085), (325, 85450), (625, 44434), (650, 42725), (1250, 22217), (1625, 17090), (1709, 16250), (3250, 8545), (3418, 8125)]