18706090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3889}}^1$

素因数の和:3946

約数の個数: 32

約数和(自身を含む): 37250640

約数和(自身を除く): 18544550

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 3889, 4810, 7778, 19445, 38890, 50557, 101114, 143893, 252785, 287786, 505570, 719465, 1438930, 1870609, 3741218, 9353045, 18706090]

約数ペア:

[(1, 18706090), (2, 9353045), (5, 3741218), (10, 1870609), (13, 1438930), (26, 719465), (37, 505570), (65, 287786), (74, 252785), (130, 143893), (185, 101114), (370, 50557), (481, 38890), (962, 19445), (2405, 7778), (3889, 4810)]