19786920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{911}}^1$

素因数の和:1106

約数の個数: 64

約数和(自身を含む): 59754240

約数和(自身を除く): 39967320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181, 362, 543, 724, 905, 911, 1086, 1448, 1810, 1822, 2172, 2715, 2733, 3620, 3644, 4344, 4555, 5430, 5466, 7240, 7288, 9110, 10860, 10932, 13665, 18220, 21720, 21864, 27330, 36440, 54660, 109320, 164891, 329782, 494673, 659564, 824455, 989346, 1319128, 1648910, 1978692, 2473365, 3297820, 3957384, 4946730, 6595640, 9893460, 19786920]

約数ペア:

[(1, 19786920), (2, 9893460), (3, 6595640), (4, 4946730), (5, 3957384), (6, 3297820), (8, 2473365), (10, 1978692), (12, 1648910), (15, 1319128), (20, 989346), (24, 824455), (30, 659564), (40, 494673), (60, 329782), (120, 164891), (181, 109320), (362, 54660), (543, 36440), (724, 27330), (905, 21864), (911, 21720), (1086, 18220), (1448, 13665), (1810, 10932), (1822, 10860), (2172, 9110), (2715, 7288), (2733, 7240), (3620, 5466), (3644, 5430), (4344, 4555)]