280719720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{353}}^1$

素因数の和:464

約数の個数: 144

約数和(自身を含む): 934804260

約数和(自身を除く): 654084540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 47, 60, 72, 90, 94, 120, 141, 180, 188, 235, 282, 353, 360, 376, 423, 470, 564, 705, 706, 846, 940, 1059, 1128, 1410, 1412, 1692, 1765, 1880, 2115, 2118, 2209, 2820, 2824, 3177, 3384, 3530, 4230, 4236, 4418, 5295, 5640, 6354, 6627, 7060, 8460, 8472, 8836, 10590, 11045, 12708, 13254, 14120, 15885, 16591, 16920, 17672, 19881, 21180, 22090, 25416, 26508, 31770, 33135, 33182, 39762, 42360, 44180, 49773, 53016, 63540, 66270, 66364, 79524, 82955, 88360, 99405, 99546, 127080, 132540, 132728, 149319, 159048, 165910, 198810, 199092, 248865, 265080, 298638, 331820, 397620, 398184, 497730, 597276, 663640, 746595, 779777, 795240, 995460, 1194552, 1493190, 1559554, 1990920, 2339331, 2986380, 3119108, 3898885, 4678662, 5972760, 6238216, 7017993, 7797770, 9357324, 11696655, 14035986, 15595540, 18714648, 23393310, 28071972, 31191080, 35089965, 46786620, 56143944, 70179930, 93573240, 140359860, 280719720]

約数ペア:

[(1, 280719720), (2, 140359860), (3, 93573240), (4, 70179930), (5, 56143944), (6, 46786620), (8, 35089965), (9, 31191080), (10, 28071972), (12, 23393310), (15, 18714648), (18, 15595540), (20, 14035986), (24, 11696655), (30, 9357324), (36, 7797770), (40, 7017993), (45, 6238216), (47, 5972760), (60, 4678662), (72, 3898885), (90, 3119108), (94, 2986380), (120, 2339331), (141, 1990920), (180, 1559554), (188, 1493190), (235, 1194552), (282, 995460), (353, 795240), (360, 779777), (376, 746595), (423, 663640), (470, 597276), (564, 497730), (705, 398184), (706, 397620), (846, 331820), (940, 298638), (1059, 265080), (1128, 248865), (1410, 199092), (1412, 198810), (1692, 165910), (1765, 159048), (1880, 149319), (2115, 132728), (2118, 132540), (2209, 127080), (2820, 99546), (2824, 99405), (3177, 88360), (3384, 82955), (3530, 79524), (4230, 66364), (4236, 66270), (4418, 63540), (5295, 53016), (5640, 49773), (6354, 44180), (6627, 42360), (7060, 39762), (8460, 33182), (8472, 33135), (8836, 31770), (10590, 26508), (11045, 25416), (12708, 22090), (13254, 21180), (14120, 19881), (15885, 17672), (16591, 16920)]