991817290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5220091}}^1$

素因数の和:5220117

約数の個数: 16

約数和(自身を含む): 1879233120

約数和(自身を除く): 887415830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 5220091, 10440182, 26100455, 52200910, 99181729, 198363458, 495908645, 991817290]

約数ペア:

[(1, 991817290), (2, 495908645), (5, 198363458), (10, 99181729), (19, 52200910), (38, 26100455), (95, 10440182), (190, 5220091)]