212912140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1520801}}^1$

素因数の和:1520817

約数の個数: 24

約数和(自身を含む): 510989472

約数和(自身を除く): 298077332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1520801, 3041602, 6083204, 7604005, 10645607, 15208010, 21291214, 30416020, 42582428, 53228035, 106456070, 212912140]

約数ペア:

[(1, 212912140), (2, 106456070), (4, 53228035), (5, 42582428), (7, 30416020), (10, 21291214), (14, 15208010), (20, 10645607), (28, 7604005), (35, 6083204), (70, 3041602), (140, 1520801)]