1289983970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{689831}}^1$

素因数の和:689866

約数の個数: 32

約数和(自身を含む): 2682066816

約数和(自身を除く): 1392082846

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 689831, 1379662, 3449155, 6898310, 7588141, 11727127, 15176282, 23454254, 37940705, 58635635, 75881410, 117271270, 128998397, 257996794, 644991985, 1289983970]

約数ペア:

[(1, 1289983970), (2, 644991985), (5, 257996794), (10, 128998397), (11, 117271270), (17, 75881410), (22, 58635635), (34, 37940705), (55, 23454254), (85, 15176282), (110, 11727127), (170, 7588141), (187, 6898310), (374, 3449155), (935, 1379662), (1870, 689831)]