15122480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9949}}^1$

素因数の和:9981

約数の個数: 40

約数和(自身を含む): 37014000

約数和(自身を除く): 21891520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 9949, 19898, 39796, 49745, 79592, 99490, 159184, 189031, 198980, 378062, 397960, 756124, 795920, 945155, 1512248, 1890310, 3024496, 3780620, 7561240, 15122480]

約数ペア:

[(1, 15122480), (2, 7561240), (4, 3780620), (5, 3024496), (8, 1890310), (10, 1512248), (16, 945155), (19, 795920), (20, 756124), (38, 397960), (40, 378062), (76, 198980), (80, 189031), (95, 159184), (152, 99490), (190, 79592), (304, 49745), (380, 39796), (760, 19898), (1520, 9949)]