19004080

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1709}}^1$

素因数の和:1861

約数の個数: 40

約数和(自身を含む): 44528400

約数和(自身を除く): 25524320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 1709, 2224, 2780, 3418, 5560, 6836, 8545, 11120, 13672, 17090, 27344, 34180, 68360, 136720, 237551, 475102, 950204, 1187755, 1900408, 2375510, 3800816, 4751020, 9502040, 19004080]

約数ペア:

[(1, 19004080), (2, 9502040), (4, 4751020), (5, 3800816), (8, 2375510), (10, 1900408), (16, 1187755), (20, 950204), (40, 475102), (80, 237551), (139, 136720), (278, 68360), (556, 34180), (695, 27344), (1112, 17090), (1390, 13672), (1709, 11120), (2224, 8545), (2780, 6836), (3418, 5560)]