18416940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{306949}}^1$

素因数の和:306961

約数の個数: 24

約数和(自身を含む): 51567600

約数和(自身を除く): 33150660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 306949, 613898, 920847, 1227796, 1534745, 1841694, 3069490, 3683388, 4604235, 6138980, 9208470, 18416940]

約数ペア:

[(1, 18416940), (2, 9208470), (3, 6138980), (4, 4604235), (5, 3683388), (6, 3069490), (10, 1841694), (12, 1534745), (15, 1227796), (20, 920847), (30, 613898), (60, 306949)]