19657960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70207}}^1$

素因数の和:70225

約数の個数: 32

約数和(自身を含む): 50549760

約数和(自身を除く): 30891800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70207, 140414, 280828, 351035, 491449, 561656, 702070, 982898, 1404140, 1965796, 2457245, 2808280, 3931592, 4914490, 9828980, 19657960]

約数ペア:

[(1, 19657960), (2, 9828980), (4, 4914490), (5, 3931592), (7, 2808280), (8, 2457245), (10, 1965796), (14, 1404140), (20, 982898), (28, 702070), (35, 561656), (40, 491449), (56, 351035), (70, 280828), (140, 140414), (280, 70207)]