19717140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328619}}^1$

素因数の和:328631

約数の個数: 24

約数和(自身を含む): 55208160

約数和(自身を除く): 35491020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328619, 657238, 985857, 1314476, 1643095, 1971714, 3286190, 3943428, 4929285, 6572380, 9858570, 19717140]

約数ペア:

[(1, 19717140), (2, 9858570), (3, 6572380), (4, 4929285), (5, 3943428), (6, 3286190), (10, 1971714), (12, 1643095), (15, 1314476), (20, 985857), (30, 657238), (60, 328619)]