81078540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1351309}}^1$

素因数の和:1351321

約数の個数: 24

約数和(自身を含む): 227020080

約数和(自身を除く): 145941540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1351309, 2702618, 4053927, 5405236, 6756545, 8107854, 13513090, 16215708, 20269635, 27026180, 40539270, 81078540]

約数ペア:

[(1, 81078540), (2, 40539270), (3, 27026180), (4, 20269635), (5, 16215708), (6, 13513090), (10, 8107854), (12, 6756545), (15, 5405236), (20, 4053927), (30, 2702618), (60, 1351309)]