20144840

素因数分解:

$2^3\times 5^1\times {\mathrm{503621}}^1$

素因数の和:503632

約数の個数: 16

約数和(自身を含む): 45325980

約数和(自身を除く): 25181140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503621, 1007242, 2014484, 2518105, 4028968, 5036210, 10072420, 20144840]

約数ペア:

[(1, 20144840), (2, 10072420), (4, 5036210), (5, 4028968), (8, 2518105), (10, 2014484), (20, 1007242), (40, 503621)]