20156987178

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{662231}}^1$

素因数の和:662347

約数の個数: 48

約数和(自身を含む): 46488686400

約数和(自身を除く): 26331699222

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 89, 114, 171, 178, 267, 342, 534, 801, 1602, 1691, 3382, 5073, 10146, 15219, 30438, 662231, 1324462, 1986693, 3973386, 5960079, 11920158, 12582389, 25164778, 37747167, 58938559, 75494334, 113241501, 117877118, 176815677, 226483002, 353631354, 530447031, 1060894062, 1119832621, 2239665242, 3359497863, 6718995726, 10078493589, 20156987178]

約数ペア:

[(1, 20156987178), (2, 10078493589), (3, 6718995726), (6, 3359497863), (9, 2239665242), (18, 1119832621), (19, 1060894062), (38, 530447031), (57, 353631354), (89, 226483002), (114, 176815677), (171, 117877118), (178, 113241501), (267, 75494334), (342, 58938559), (534, 37747167), (801, 25164778), (1602, 12582389), (1691, 11920158), (3382, 5960079), (5073, 3973386), (10146, 1986693), (15219, 1324462), (30438, 662231)]