142772140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1019801}}^1$

素因数の和:1019817

約数の個数: 24

約数和(自身を含む): 342653472

約数和(自身を除く): 199881332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1019801, 2039602, 4079204, 5099005, 7138607, 10198010, 14277214, 20396020, 28554428, 35693035, 71386070, 142772140]

約数ペア:

[(1, 142772140), (2, 71386070), (4, 35693035), (5, 28554428), (7, 20396020), (10, 14277214), (14, 10198010), (20, 7138607), (28, 5099005), (35, 4079204), (70, 2039602), (140, 1019801)]