128373840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{25471}}^1$

素因数の和:25497

約数の個数: 120

約数和(自身を含む): 492730368

約数和(自身を除く): 364356528

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 25471, 50942, 76413, 101884, 127355, 152826, 178297, 203768, 229239, 254710, 305652, 356594, 382065, 407536, 458478, 509420, 534891, 611304, 713188, 764130, 891485, 916956, 1018840, 1069782, 1146195, 1222608, 1426376, 1528260, 1604673, 1782970, 1833912, 2037680, 2139564, 2292390, 2674455, 2852752, 3056520, 3209346, 3565940, 3667824, 4279128, 4584780, 5348910, 6113040, 6418692, 7131880, 8023365, 8558256, 9169560, 10697820, 12837384, 14263760, 16046730, 18339120, 21395640, 25674768, 32093460, 42791280, 64186920, 128373840]

約数ペア:

[(1, 128373840), (2, 64186920), (3, 42791280), (4, 32093460), (5, 25674768), (6, 21395640), (7, 18339120), (8, 16046730), (9, 14263760), (10, 12837384), (12, 10697820), (14, 9169560), (15, 8558256), (16, 8023365), (18, 7131880), (20, 6418692), (21, 6113040), (24, 5348910), (28, 4584780), (30, 4279128), (35, 3667824), (36, 3565940), (40, 3209346), (42, 3056520), (45, 2852752), (48, 2674455), (56, 2292390), (60, 2139564), (63, 2037680), (70, 1833912), (72, 1782970), (80, 1604673), (84, 1528260), (90, 1426376), (105, 1222608), (112, 1146195), (120, 1069782), (126, 1018840), (140, 916956), (144, 891485), (168, 764130), (180, 713188), (210, 611304), (240, 534891), (252, 509420), (280, 458478), (315, 407536), (336, 382065), (360, 356594), (420, 305652), (504, 254710), (560, 229239), (630, 203768), (720, 178297), (840, 152826), (1008, 127355), (1260, 101884), (1680, 76413), (2520, 50942), (5040, 25471)]