18310072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 40435200

約数和(自身を除く): 22125128

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 47, 76, 88, 94, 152, 188, 209, 233, 376, 418, 466, 517, 836, 893, 932, 1034, 1672, 1786, 1864, 2068, 2563, 3572, 4136, 4427, 5126, 7144, 8854, 9823, 10252, 10951, 17708, 19646, 20504, 21902, 35416, 39292, 43804, 48697, 78584, 87608, 97394, 120461, 194788, 208069, 240922, 389576, 416138, 481844, 832276, 963688, 1664552, 2288759, 4577518, 9155036, 18310072]

約数ペア:

[(1, 18310072), (2, 9155036), (4, 4577518), (8, 2288759), (11, 1664552), (19, 963688), (22, 832276), (38, 481844), (44, 416138), (47, 389576), (76, 240922), (88, 208069), (94, 194788), (152, 120461), (188, 97394), (209, 87608), (233, 78584), (376, 48697), (418, 43804), (466, 39292), (517, 35416), (836, 21902), (893, 20504), (932, 19646), (1034, 17708), (1672, 10951), (1786, 10252), (1864, 9823), (2068, 8854), (2563, 7144), (3572, 5126), (4136, 4427)]