20161851760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{243031}}^1$

素因数の和:243122

約数の個数: 80

約数和(自身を含む): 50447610432

約数和(自身を除く): 30285758672

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 61, 68, 80, 85, 122, 136, 170, 244, 272, 305, 340, 488, 610, 680, 976, 1037, 1220, 1360, 2074, 2440, 4148, 4880, 5185, 8296, 10370, 16592, 20740, 41480, 82960, 243031, 486062, 972124, 1215155, 1944248, 2430310, 3888496, 4131527, 4860620, 8263054, 9721240, 14824891, 16526108, 19442480, 20657635, 29649782, 33052216, 41315270, 59299564, 66104432, 74124455, 82630540, 118599128, 148248910, 165261080, 237198256, 252023147, 296497820, 330522160, 504046294, 592995640, 1008092588, 1185991280, 1260115735, 2016185176, 2520231470, 4032370352, 5040462940, 10080925880, 20161851760]

約数ペア:

[(1, 20161851760), (2, 10080925880), (4, 5040462940), (5, 4032370352), (8, 2520231470), (10, 2016185176), (16, 1260115735), (17, 1185991280), (20, 1008092588), (34, 592995640), (40, 504046294), (61, 330522160), (68, 296497820), (80, 252023147), (85, 237198256), (122, 165261080), (136, 148248910), (170, 118599128), (244, 82630540), (272, 74124455), (305, 66104432), (340, 59299564), (488, 41315270), (610, 33052216), (680, 29649782), (976, 20657635), (1037, 19442480), (1220, 16526108), (1360, 14824891), (2074, 9721240), (2440, 8263054), (4148, 4860620), (4880, 4131527), (5185, 3888496), (8296, 2430310), (10370, 1944248), (16592, 1215155), (20740, 972124), (41480, 486062), (82960, 243031)]