15747920

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1949}}^1$

素因数の和:2063

約数の個数: 40

約数和(自身を含む): 36995400

約数和(自身を除く): 21247480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 1949, 2020, 3898, 4040, 7796, 8080, 9745, 15592, 19490, 31184, 38980, 77960, 155920, 196849, 393698, 787396, 984245, 1574792, 1968490, 3149584, 3936980, 7873960, 15747920]

約数ペア:

[(1, 15747920), (2, 7873960), (4, 3936980), (5, 3149584), (8, 1968490), (10, 1574792), (16, 984245), (20, 787396), (40, 393698), (80, 196849), (101, 155920), (202, 77960), (404, 38980), (505, 31184), (808, 19490), (1010, 15592), (1616, 9745), (1949, 8080), (2020, 7796), (3898, 4040)]