18731180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72043}}^1$

素因数の和:72065

約数の個数: 24

約数和(自身を含む): 42361872

約数和(自身を除く): 23630692

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72043, 144086, 288172, 360215, 720430, 936559, 1440860, 1873118, 3746236, 4682795, 9365590, 18731180]

約数ペア:

[(1, 18731180), (2, 9365590), (4, 4682795), (5, 3746236), (10, 1873118), (13, 1440860), (20, 936559), (26, 720430), (52, 360215), (65, 288172), (130, 144086), (260, 72043)]