15811980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{263533}}^1$

素因数の和:263545

約数の個数: 24

約数和(自身を含む): 44273712

約数和(自身を除く): 28461732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 263533, 527066, 790599, 1054132, 1317665, 1581198, 2635330, 3162396, 3952995, 5270660, 7905990, 15811980]

約数ペア:

[(1, 15811980), (2, 7905990), (3, 5270660), (4, 3952995), (5, 3162396), (6, 2635330), (10, 1581198), (12, 1317665), (15, 1054132), (20, 790599), (30, 527066), (60, 263533)]