25745720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:685

約数の個数: 128

約数和(自身を含む): 77898240

約数和(自身を除く): 52152520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 643, 715, 728, 770, 910, 1001, 1144, 1286, 1430, 1540, 1820, 2002, 2572, 2860, 3080, 3215, 3640, 4004, 4501, 5005, 5144, 5720, 6430, 7073, 8008, 8359, 9002, 10010, 12860, 14146, 16718, 18004, 20020, 22505, 25720, 28292, 33436, 35365, 36008, 40040, 41795, 45010, 49511, 56584, 58513, 66872, 70730, 83590, 90020, 91949, 99022, 117026, 141460, 167180, 180040, 183898, 198044, 234052, 247555, 282920, 292565, 334360, 367796, 396088, 459745, 468104, 495110, 585130, 643643, 735592, 919490, 990220, 1170260, 1287286, 1838980, 1980440, 2340520, 2574572, 3218215, 3677960, 5149144, 6436430, 12872860, 25745720]

約数ペア:

[(1, 25745720), (2, 12872860), (4, 6436430), (5, 5149144), (7, 3677960), (8, 3218215), (10, 2574572), (11, 2340520), (13, 1980440), (14, 1838980), (20, 1287286), (22, 1170260), (26, 990220), (28, 919490), (35, 735592), (40, 643643), (44, 585130), (52, 495110), (55, 468104), (56, 459745), (65, 396088), (70, 367796), (77, 334360), (88, 292565), (91, 282920), (104, 247555), (110, 234052), (130, 198044), (140, 183898), (143, 180040), (154, 167180), (182, 141460), (220, 117026), (260, 99022), (280, 91949), (286, 90020), (308, 83590), (364, 70730), (385, 66872), (440, 58513), (455, 56584), (520, 49511), (572, 45010), (616, 41795), (643, 40040), (715, 36008), (728, 35365), (770, 33436), (910, 28292), (1001, 25720), (1144, 22505), (1286, 20020), (1430, 18004), (1540, 16718), (1820, 14146), (2002, 12860), (2572, 10010), (2860, 9002), (3080, 8359), (3215, 8008), (3640, 7073), (4004, 6430), (4501, 5720), (5005, 5144)]