2220965

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 24

約数和(自身を含む): 2984040

約数和(自身を除く): 763075

約数列:

[1, 5, 17, 29, 53, 85, 145, 265, 289, 493, 901, 1445, 1537, 2465, 4505, 7685, 8381, 15317, 26129, 41905, 76585, 130645, 444193, 2220965]

約数ペア:

[(1, 2220965), (5, 444193), (17, 130645), (29, 76585), (53, 41905), (85, 26129), (145, 15317), (265, 8381), (289, 7685), (493, 4505), (901, 2465), (1445, 1537)]