18441875

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{1553}}^1$

素因数の和:1592

約数の個数: 20

約数和(自身を含む): 24273480

約数和(自身を除く): 5831605

約数列:

[1, 5, 19, 25, 95, 125, 475, 625, 1553, 2375, 7765, 11875, 29507, 38825, 147535, 194125, 737675, 970625, 3688375, 18441875]

約数ペア:

[(1, 18441875), (5, 3688375), (19, 970625), (25, 737675), (95, 194125), (125, 147535), (475, 38825), (625, 29507), (1553, 11875), (2375, 7765)]