8180380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 18797184

約数和(自身を除く): 10616804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 431, 730, 862, 949, 1460, 1724, 1898, 2155, 3796, 4310, 4745, 5603, 8620, 9490, 11206, 18980, 22412, 28015, 31463, 56030, 62926, 112060, 125852, 157315, 314630, 409019, 629260, 818038, 1636076, 2045095, 4090190, 8180380]

約数ペア:

[(1, 8180380), (2, 4090190), (4, 2045095), (5, 1636076), (10, 818038), (13, 629260), (20, 409019), (26, 314630), (52, 157315), (65, 125852), (73, 112060), (130, 62926), (146, 56030), (260, 31463), (292, 28015), (365, 22412), (431, 18980), (730, 11206), (862, 9490), (949, 8620), (1460, 5603), (1724, 4745), (1898, 4310), (2155, 3796)]