65201560

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{16139}}^1$

素因数の和:16251

約数の個数: 32

約数和(自身を含む): 148165200

約数和(自身を除く): 82963640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 16139, 32278, 64556, 80695, 129112, 161390, 322780, 645560, 1630039, 3260078, 6520156, 8150195, 13040312, 16300390, 32600780, 65201560]

約数ペア:

[(1, 65201560), (2, 32600780), (4, 16300390), (5, 13040312), (8, 8150195), (10, 6520156), (20, 3260078), (40, 1630039), (101, 645560), (202, 322780), (404, 161390), (505, 129112), (808, 80695), (1010, 64556), (2020, 32278), (4040, 16139)]