18979240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67783}}^1$

素因数の和:67801

約数の個数: 32

約数和(自身を含む): 48804480

約数和(自身を除く): 29825240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67783, 135566, 271132, 338915, 474481, 542264, 677830, 948962, 1355660, 1897924, 2372405, 2711320, 3795848, 4744810, 9489620, 18979240]

約数ペア:

[(1, 18979240), (2, 9489620), (4, 4744810), (5, 3795848), (7, 2711320), (8, 2372405), (10, 1897924), (14, 1355660), (20, 948962), (28, 677830), (35, 542264), (40, 474481), (56, 338915), (70, 271132), (140, 135566), (280, 67783)]