78418612

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{1217}}^1$

素因数の和:1491

約数の個数: 24

約数和(自身を含む): 139655880

約数和(自身を除く): 61237268

約数列:

[1, 2, 4, 89, 178, 181, 356, 362, 724, 1217, 2434, 4868, 16109, 32218, 64436, 108313, 216626, 220277, 433252, 440554, 881108, 19604653, 39209306, 78418612]

約数ペア:

[(1, 78418612), (2, 39209306), (4, 19604653), (89, 881108), (178, 440554), (181, 433252), (356, 220277), (362, 216626), (724, 108313), (1217, 64436), (2434, 32218), (4868, 16109)]