18158620

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5783}}^1$

素因数の和:5949

約数の個数: 24

約数和(自身を含む): 38382624

約数和(自身を除く): 20224004

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 5783, 11566, 23132, 28915, 57830, 115660, 907931, 1815862, 3631724, 4539655, 9079310, 18158620]

約数ペア:

[(1, 18158620), (2, 9079310), (4, 4539655), (5, 3631724), (10, 1815862), (20, 907931), (157, 115660), (314, 57830), (628, 28915), (785, 23132), (1570, 11566), (3140, 5783)]