406156940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2901121}}^1$

素因数の和:2901137

約数の個数: 24

約数和(自身を含む): 974776992

約数和(自身を除く): 568620052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2901121, 5802242, 11604484, 14505605, 20307847, 29011210, 40615694, 58022420, 81231388, 101539235, 203078470, 406156940]

約数ペア:

[(1, 406156940), (2, 203078470), (4, 101539235), (5, 81231388), (7, 58022420), (10, 40615694), (14, 29011210), (20, 20307847), (28, 14505605), (35, 11604484), (70, 5802242), (140, 2901121)]