2109132520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{1291}}^1$

素因数の和:1439

約数の個数: 128

約数和(自身を含む): 5358182400

約数和(自身を除く): 3249049880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 79, 88, 94, 110, 158, 188, 220, 235, 316, 376, 395, 440, 470, 517, 632, 790, 869, 940, 1034, 1291, 1580, 1738, 1880, 2068, 2582, 2585, 3160, 3476, 3713, 4136, 4345, 5164, 5170, 6455, 6952, 7426, 8690, 10328, 10340, 12910, 14201, 14852, 17380, 18565, 20680, 25820, 28402, 29704, 34760, 37130, 40843, 51640, 56804, 60677, 71005, 74260, 81686, 101989, 113608, 121354, 142010, 148520, 163372, 203978, 204215, 242708, 284020, 303385, 326744, 407956, 408430, 485416, 509945, 568040, 606770, 667447, 815912, 816860, 1019890, 1121879, 1213540, 1334894, 1633720, 2039780, 2243758, 2427080, 2669788, 3337235, 4079560, 4487516, 4793483, 5339576, 5609395, 6674470, 8975032, 9586966, 11218790, 13348940, 19173932, 22437580, 23967415, 26697880, 38347864, 44875160, 47934830, 52728313, 95869660, 105456626, 191739320, 210913252, 263641565, 421826504, 527283130, 1054566260, 2109132520]

約数ペア:

[(1, 2109132520), (2, 1054566260), (4, 527283130), (5, 421826504), (8, 263641565), (10, 210913252), (11, 191739320), (20, 105456626), (22, 95869660), (40, 52728313), (44, 47934830), (47, 44875160), (55, 38347864), (79, 26697880), (88, 23967415), (94, 22437580), (110, 19173932), (158, 13348940), (188, 11218790), (220, 9586966), (235, 8975032), (316, 6674470), (376, 5609395), (395, 5339576), (440, 4793483), (470, 4487516), (517, 4079560), (632, 3337235), (790, 2669788), (869, 2427080), (940, 2243758), (1034, 2039780), (1291, 1633720), (1580, 1334894), (1738, 1213540), (1880, 1121879), (2068, 1019890), (2582, 816860), (2585, 815912), (3160, 667447), (3476, 606770), (3713, 568040), (4136, 509945), (4345, 485416), (5164, 408430), (5170, 407956), (6455, 326744), (6952, 303385), (7426, 284020), (8690, 242708), (10328, 204215), (10340, 203978), (12910, 163372), (14201, 148520), (14852, 142010), (17380, 121354), (18565, 113608), (20680, 101989), (25820, 81686), (28402, 74260), (29704, 71005), (34760, 60677), (37130, 56804), (40843, 51640)]