18615820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{48989}}^1$

素因数の和:49017

約数の個数: 24

約数和(自身を含む): 41151600

約数和(自身を除く): 22535780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 48989, 97978, 195956, 244945, 489890, 930791, 979780, 1861582, 3723164, 4653955, 9307910, 18615820]

約数ペア:

[(1, 18615820), (2, 9307910), (4, 4653955), (5, 3723164), (10, 1861582), (19, 979780), (20, 930791), (38, 489890), (76, 244945), (95, 195956), (190, 97978), (380, 48989)]