18952180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72893}}^1$

素因数の和:72915

約数の個数: 24

約数和(自身を含む): 42861672

約数和(自身を除く): 23909492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72893, 145786, 291572, 364465, 728930, 947609, 1457860, 1895218, 3790436, 4738045, 9476090, 18952180]

約数ペア:

[(1, 18952180), (2, 9476090), (4, 4738045), (5, 3790436), (10, 1895218), (13, 1457860), (20, 947609), (26, 728930), (52, 364465), (65, 291572), (130, 145786), (260, 72893)]