28736720

素因数分解:

$2^4\times 5^1\times {\mathrm{359209}}^1$

素因数の和:359222

約数の個数: 20

約数和(自身を含む): 66813060

約数和(自身を除く): 38076340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 359209, 718418, 1436836, 1796045, 2873672, 3592090, 5747344, 7184180, 14368360, 28736720]

約数ペア:

[(1, 28736720), (2, 14368360), (4, 7184180), (5, 5747344), (8, 3592090), (10, 2873672), (16, 1796045), (20, 1436836), (40, 718418), (80, 359209)]