18696240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1129}}^1$

素因数の和:1171

約数の個数: 120

約数和(自身を含む): 65576160

約数和(自身を除く): 46879920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1129, 1380, 1656, 1840, 2070, 2258, 2760, 3312, 3387, 4140, 4516, 5520, 5645, 6774, 8280, 9032, 10161, 11290, 13548, 16560, 16935, 18064, 20322, 22580, 25967, 27096, 33870, 40644, 45160, 50805, 51934, 54192, 67740, 77901, 81288, 90320, 101610, 103868, 129835, 135480, 155802, 162576, 203220, 207736, 233703, 259670, 270960, 311604, 389505, 406440, 415472, 467406, 519340, 623208, 779010, 812880, 934812, 1038680, 1168515, 1246416, 1558020, 1869624, 2077360, 2337030, 3116040, 3739248, 4674060, 6232080, 9348120, 18696240]

約数ペア:

[(1, 18696240), (2, 9348120), (3, 6232080), (4, 4674060), (5, 3739248), (6, 3116040), (8, 2337030), (9, 2077360), (10, 1869624), (12, 1558020), (15, 1246416), (16, 1168515), (18, 1038680), (20, 934812), (23, 812880), (24, 779010), (30, 623208), (36, 519340), (40, 467406), (45, 415472), (46, 406440), (48, 389505), (60, 311604), (69, 270960), (72, 259670), (80, 233703), (90, 207736), (92, 203220), (115, 162576), (120, 155802), (138, 135480), (144, 129835), (180, 103868), (184, 101610), (207, 90320), (230, 81288), (240, 77901), (276, 67740), (345, 54192), (360, 51934), (368, 50805), (414, 45160), (460, 40644), (552, 33870), (690, 27096), (720, 25967), (828, 22580), (920, 20322), (1035, 18064), (1104, 16935), (1129, 16560), (1380, 13548), (1656, 11290), (1840, 10161), (2070, 9032), (2258, 8280), (2760, 6774), (3312, 5645), (3387, 5520), (4140, 4516)]