220194940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1572821}}^1$

素因数の和:1572837

約数の個数: 24

約数和(自身を含む): 528468192

約数和(自身を除く): 308273252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1572821, 3145642, 6291284, 7864105, 11009747, 15728210, 22019494, 31456420, 44038988, 55048735, 110097470, 220194940]

約数ペア:

[(1, 220194940), (2, 110097470), (4, 55048735), (5, 44038988), (7, 31456420), (10, 22019494), (14, 15728210), (20, 11009747), (28, 7864105), (35, 6291284), (70, 3145642), (140, 1572821)]