168991640

素因数分解:

$2^3\times 5^1\times {\mathrm{4224791}}^1$

素因数の和:4224802

約数の個数: 16

約数和(自身を含む): 380231280

約数和(自身を除く): 211239640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4224791, 8449582, 16899164, 21123955, 33798328, 42247910, 84495820, 168991640]

約数ペア:

[(1, 168991640), (2, 84495820), (4, 42247910), (5, 33798328), (8, 21123955), (10, 16899164), (20, 8449582), (40, 4224791)]