20223640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7121}}^1$

素因数の和:7203

約数の個数: 32

約数和(自身を含む): 46150560

約数和(自身を除く): 25926920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7121, 14242, 28484, 35605, 56968, 71210, 142420, 284840, 505591, 1011182, 2022364, 2527955, 4044728, 5055910, 10111820, 20223640]

約数ペア:

[(1, 20223640), (2, 10111820), (4, 5055910), (5, 4044728), (8, 2527955), (10, 2022364), (20, 1011182), (40, 505591), (71, 284840), (142, 142420), (284, 71210), (355, 56968), (568, 35605), (710, 28484), (1420, 14242), (2840, 7121)]