20881548016

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{152947}}^1$

素因数の和:153038

約数の個数: 80

約数和(自身を含む): 49158710784

約数和(自身を除く): 28277162768

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 53, 56, 92, 106, 112, 161, 184, 212, 322, 368, 371, 424, 644, 742, 848, 1219, 1288, 1484, 2438, 2576, 2968, 4876, 5936, 8533, 9752, 17066, 19504, 34132, 68264, 136528, 152947, 305894, 611788, 1070629, 1223576, 2141258, 2447152, 3517781, 4282516, 7035562, 8106191, 8565032, 14071124, 16212382, 17130064, 24624467, 28142248, 32424764, 49248934, 56284496, 56743337, 64849528, 98497868, 113486674, 129699056, 186442393, 196995736, 226973348, 372884786, 393991472, 453946696, 745769572, 907893392, 1305096751, 1491539144, 2610193502, 2983078288, 5220387004, 10440774008, 20881548016]

約数ペア:

[(1, 20881548016), (2, 10440774008), (4, 5220387004), (7, 2983078288), (8, 2610193502), (14, 1491539144), (16, 1305096751), (23, 907893392), (28, 745769572), (46, 453946696), (53, 393991472), (56, 372884786), (92, 226973348), (106, 196995736), (112, 186442393), (161, 129699056), (184, 113486674), (212, 98497868), (322, 64849528), (368, 56743337), (371, 56284496), (424, 49248934), (644, 32424764), (742, 28142248), (848, 24624467), (1219, 17130064), (1288, 16212382), (1484, 14071124), (2438, 8565032), (2576, 8106191), (2968, 7035562), (4876, 4282516), (5936, 3517781), (8533, 2447152), (9752, 2141258), (17066, 1223576), (19504, 1070629), (34132, 611788), (68264, 305894), (136528, 152947)]