400544040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2647}}^1$

素因数の和:2771

約数の個数: 128

約数和(自身を含む): 1307900160

約数和(自身を除く): 907356120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 97, 104, 120, 130, 156, 194, 195, 260, 291, 312, 388, 390, 485, 520, 582, 776, 780, 970, 1164, 1261, 1455, 1560, 1940, 2328, 2522, 2647, 2910, 3783, 3880, 5044, 5294, 5820, 6305, 7566, 7941, 10088, 10588, 11640, 12610, 13235, 15132, 15882, 18915, 21176, 25220, 26470, 30264, 31764, 34411, 37830, 39705, 50440, 52940, 63528, 68822, 75660, 79410, 103233, 105880, 137644, 151320, 158820, 172055, 206466, 256759, 275288, 317640, 344110, 412932, 513518, 516165, 688220, 770277, 825864, 1027036, 1032330, 1283795, 1376440, 1540554, 2054072, 2064660, 2567590, 3081108, 3337867, 3851385, 4129320, 5135180, 6162216, 6675734, 7702770, 10013601, 10270360, 13351468, 15405540, 16689335, 20027202, 26702936, 30811080, 33378670, 40054404, 50068005, 66757340, 80108808, 100136010, 133514680, 200272020, 400544040]

約数ペア:

[(1, 400544040), (2, 200272020), (3, 133514680), (4, 100136010), (5, 80108808), (6, 66757340), (8, 50068005), (10, 40054404), (12, 33378670), (13, 30811080), (15, 26702936), (20, 20027202), (24, 16689335), (26, 15405540), (30, 13351468), (39, 10270360), (40, 10013601), (52, 7702770), (60, 6675734), (65, 6162216), (78, 5135180), (97, 4129320), (104, 3851385), (120, 3337867), (130, 3081108), (156, 2567590), (194, 2064660), (195, 2054072), (260, 1540554), (291, 1376440), (312, 1283795), (388, 1032330), (390, 1027036), (485, 825864), (520, 770277), (582, 688220), (776, 516165), (780, 513518), (970, 412932), (1164, 344110), (1261, 317640), (1455, 275288), (1560, 256759), (1940, 206466), (2328, 172055), (2522, 158820), (2647, 151320), (2910, 137644), (3783, 105880), (3880, 103233), (5044, 79410), (5294, 75660), (5820, 68822), (6305, 63528), (7566, 52940), (7941, 50440), (10088, 39705), (10588, 37830), (11640, 34411), (12610, 31764), (13235, 30264), (15132, 26470), (15882, 25220), (18915, 21176)]