17720983460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{105269}}^1$

素因数の和:105740

約数の個数: 48

約数和(自身を含む): 39261499200

約数和(自身を除く): 21540515740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 443, 886, 1772, 2215, 4430, 8417, 8860, 16834, 33668, 42085, 84170, 105269, 168340, 210538, 421076, 526345, 1052690, 2000111, 2105380, 4000222, 8000444, 10000555, 20001110, 40002220, 46634167, 93268334, 186536668, 233170835, 466341670, 886049173, 932683340, 1772098346, 3544196692, 4430245865, 8860491730, 17720983460]

約数ペア:

[(1, 17720983460), (2, 8860491730), (4, 4430245865), (5, 3544196692), (10, 1772098346), (19, 932683340), (20, 886049173), (38, 466341670), (76, 233170835), (95, 186536668), (190, 93268334), (380, 46634167), (443, 40002220), (886, 20001110), (1772, 10000555), (2215, 8000444), (4430, 4000222), (8417, 2105380), (8860, 2000111), (16834, 1052690), (33668, 526345), (42085, 421076), (84170, 210538), (105269, 168340)]