19418350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 41738400

約数和(自身を除く): 22320050

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 109, 175, 218, 350, 509, 545, 763, 1018, 1090, 1526, 2545, 2725, 3563, 3815, 5090, 5450, 7126, 7630, 12725, 17815, 19075, 25450, 35630, 38150, 55481, 89075, 110962, 178150, 277405, 388367, 554810, 776734, 1387025, 1941835, 2774050, 3883670, 9709175, 19418350]

約数ペア:

[(1, 19418350), (2, 9709175), (5, 3883670), (7, 2774050), (10, 1941835), (14, 1387025), (25, 776734), (35, 554810), (50, 388367), (70, 277405), (109, 178150), (175, 110962), (218, 89075), (350, 55481), (509, 38150), (545, 35630), (763, 25450), (1018, 19075), (1090, 17815), (1526, 12725), (2545, 7630), (2725, 7126), (3563, 5450), (3815, 5090)]