253600840

素因数分解:

$2^3\times 5^1\times {\mathrm{6340021}}^1$

素因数の和:6340032

約数の個数: 16

約数和(自身を含む): 570601980

約数和(自身を除く): 317001140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6340021, 12680042, 25360084, 31700105, 50720168, 63400210, 126800420, 253600840]

約数ペア:

[(1, 253600840), (2, 126800420), (4, 63400210), (5, 50720168), (8, 31700105), (10, 25360084), (20, 12680042), (40, 6340021)]