18036440

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1871}}^1$

素因数の和:2123

約数の個数: 32

約数和(自身を含む): 40772160

約数和(自身を除く): 22735720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1871, 1928, 2410, 3742, 4820, 7484, 9355, 9640, 14968, 18710, 37420, 74840, 450911, 901822, 1803644, 2254555, 3607288, 4509110, 9018220, 18036440]

約数ペア:

[(1, 18036440), (2, 9018220), (4, 4509110), (5, 3607288), (8, 2254555), (10, 1803644), (20, 901822), (40, 450911), (241, 74840), (482, 37420), (964, 18710), (1205, 14968), (1871, 9640), (1928, 9355), (2410, 7484), (3742, 4820)]