28010840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 76204800

約数和(自身を除く): 48193960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 59, 65, 83, 88, 104, 110, 118, 130, 143, 166, 220, 236, 260, 286, 295, 332, 415, 440, 472, 520, 572, 590, 649, 664, 715, 767, 830, 913, 1079, 1144, 1180, 1298, 1430, 1534, 1660, 1826, 2158, 2360, 2596, 2860, 3068, 3245, 3320, 3652, 3835, 4316, 4565, 4897, 5192, 5395, 5720, 6136, 6490, 7304, 7670, 8437, 8632, 9130, 9794, 10790, 11869, 12980, 15340, 16874, 18260, 19588, 21580, 23738, 24485, 25960, 30680, 33748, 36520, 39176, 42185, 43160, 47476, 48970, 53867, 59345, 63661, 67496, 84370, 94952, 97940, 107734, 118690, 127322, 168740, 195880, 215468, 237380, 254644, 269335, 318305, 337480, 430936, 474760, 509288, 538670, 636610, 700271, 1077340, 1273220, 1400542, 2154680, 2546440, 2801084, 3501355, 5602168, 7002710, 14005420, 28010840]

約数ペア:

[(1, 28010840), (2, 14005420), (4, 7002710), (5, 5602168), (8, 3501355), (10, 2801084), (11, 2546440), (13, 2154680), (20, 1400542), (22, 1273220), (26, 1077340), (40, 700271), (44, 636610), (52, 538670), (55, 509288), (59, 474760), (65, 430936), (83, 337480), (88, 318305), (104, 269335), (110, 254644), (118, 237380), (130, 215468), (143, 195880), (166, 168740), (220, 127322), (236, 118690), (260, 107734), (286, 97940), (295, 94952), (332, 84370), (415, 67496), (440, 63661), (472, 59345), (520, 53867), (572, 48970), (590, 47476), (649, 43160), (664, 42185), (715, 39176), (767, 36520), (830, 33748), (913, 30680), (1079, 25960), (1144, 24485), (1180, 23738), (1298, 21580), (1430, 19588), (1534, 18260), (1660, 16874), (1826, 15340), (2158, 12980), (2360, 11869), (2596, 10790), (2860, 9794), (3068, 9130), (3245, 8632), (3320, 8437), (3652, 7670), (3835, 7304), (4316, 6490), (4565, 6136), (4897, 5720), (5192, 5395)]