20778200

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4517}}^1$

素因数の和:4556

約数の個数: 48

約数和(自身を含む): 50420880

約数和(自身を除く): 29642680

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4517, 4600, 9034, 18068, 22585, 36136, 45170, 90340, 103891, 112925, 180680, 207782, 225850, 415564, 451700, 519455, 831128, 903400, 1038910, 2077820, 2597275, 4155640, 5194550, 10389100, 20778200]

約数ペア:

[(1, 20778200), (2, 10389100), (4, 5194550), (5, 4155640), (8, 2597275), (10, 2077820), (20, 1038910), (23, 903400), (25, 831128), (40, 519455), (46, 451700), (50, 415564), (92, 225850), (100, 207782), (115, 180680), (184, 112925), (200, 103891), (230, 90340), (460, 45170), (575, 36136), (920, 22585), (1150, 18068), (2300, 9034), (4517, 4600)]