17918840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19477}}^1$

素因数の和:19511

約数の個数: 32

約数和(自身を含む): 42072480

約数和(自身を除く): 24153640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 19477, 38954, 77908, 97385, 155816, 194770, 389540, 447971, 779080, 895942, 1791884, 2239855, 3583768, 4479710, 8959420, 17918840]

約数ペア:

[(1, 17918840), (2, 8959420), (4, 4479710), (5, 3583768), (8, 2239855), (10, 1791884), (20, 895942), (23, 779080), (40, 447971), (46, 389540), (92, 194770), (115, 155816), (184, 97385), (230, 77908), (460, 38954), (920, 19477)]