28107760

素因数分解:

$2^4\times 5^1\times {\mathrm{351347}}^1$

素因数の和:351360

約数の個数: 20

約数和(自身を含む): 65350728

約数和(自身を除く): 37242968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351347, 702694, 1405388, 1756735, 2810776, 3513470, 5621552, 7026940, 14053880, 28107760]

約数ペア:

[(1, 28107760), (2, 14053880), (4, 7026940), (5, 5621552), (8, 3513470), (10, 2810776), (16, 1756735), (20, 1405388), (40, 702694), (80, 351347)]