20462870168

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{248119}}^1$

素因数の和:248212

約数の個数: 48

約数和(自身を含む): 42227542800

約数和(自身を除く): 21764672632

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 169, 244, 338, 488, 676, 793, 1352, 1586, 3172, 6344, 10309, 20618, 41236, 82472, 248119, 496238, 992476, 1984952, 3225547, 6451094, 12902188, 15135259, 25804376, 30270518, 41932111, 60541036, 83864222, 121082072, 167728444, 196758367, 335456888, 393516734, 787033468, 1574066936, 2557858771, 5115717542, 10231435084, 20462870168]

約数ペア:

[(1, 20462870168), (2, 10231435084), (4, 5115717542), (8, 2557858771), (13, 1574066936), (26, 787033468), (52, 393516734), (61, 335456888), (104, 196758367), (122, 167728444), (169, 121082072), (244, 83864222), (338, 60541036), (488, 41932111), (676, 30270518), (793, 25804376), (1352, 15135259), (1586, 12902188), (3172, 6451094), (6344, 3225547), (10309, 1984952), (20618, 992476), (41236, 496238), (82472, 248119)]