2156879870

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{22229}}^1$

素因数の和:22580

約数の個数: 32

約数和(自身を含む): 4020606720

約数和(自身を除く): 1863726850

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 313, 626, 1565, 3130, 9703, 19406, 22229, 44458, 48515, 97030, 111145, 222290, 689099, 1378198, 3445495, 6890990, 6957677, 13915354, 34788385, 69576770, 215687987, 431375974, 1078439935, 2156879870]

約数ペア:

[(1, 2156879870), (2, 1078439935), (5, 431375974), (10, 215687987), (31, 69576770), (62, 34788385), (155, 13915354), (310, 6957677), (313, 6890990), (626, 3445495), (1565, 1378198), (3130, 689099), (9703, 222290), (19406, 111145), (22229, 97030), (44458, 48515)]