90897980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{2647}}^1$

素因数の和:2774

約数の個数: 48

約数和(自身を含む): 204192576

約数和(自身を除く): 113294596

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 404, 505, 1010, 1717, 2020, 2647, 3434, 5294, 6868, 8585, 10588, 13235, 17170, 26470, 34340, 44999, 52940, 89998, 179996, 224995, 267347, 449990, 534694, 899980, 1069388, 1336735, 2673470, 4544899, 5346940, 9089798, 18179596, 22724495, 45448990, 90897980]

約数ペア:

[(1, 90897980), (2, 45448990), (4, 22724495), (5, 18179596), (10, 9089798), (17, 5346940), (20, 4544899), (34, 2673470), (68, 1336735), (85, 1069388), (101, 899980), (170, 534694), (202, 449990), (340, 267347), (404, 224995), (505, 179996), (1010, 89998), (1717, 52940), (2020, 44999), (2647, 34340), (3434, 26470), (5294, 17170), (6868, 13235), (8585, 10588)]