19705910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1429}}^1$

素因数の和:1640

約数の個数: 32

約数和(自身を含む): 40772160

約数和(自身を除く): 21066250

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1379, 1429, 1970, 2758, 2858, 6895, 7145, 10003, 13790, 14290, 20006, 50015, 100030, 281513, 563026, 1407565, 1970591, 2815130, 3941182, 9852955, 19705910]

約数ペア:

[(1, 19705910), (2, 9852955), (5, 3941182), (7, 2815130), (10, 1970591), (14, 1407565), (35, 563026), (70, 281513), (197, 100030), (394, 50015), (985, 20006), (1379, 14290), (1429, 13790), (1970, 10003), (2758, 7145), (2858, 6895)]