28952720

素因数分解:

$2^4\times 5^1\times {\mathrm{361909}}^1$

素因数の和:361922

約数の個数: 20

約数和(自身を含む): 67315260

約数和(自身を除く): 38362540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 361909, 723818, 1447636, 1809545, 2895272, 3619090, 5790544, 7238180, 14476360, 28952720]

約数ペア:

[(1, 28952720), (2, 14476360), (4, 7238180), (5, 5790544), (8, 3619090), (10, 2895272), (16, 1809545), (20, 1447636), (40, 723818), (80, 361909)]