215657960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{770207}}^1$

素因数の和:770225

約数の個数: 32

約数和(自身を含む): 554549760

約数和(自身を除く): 338891800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 770207, 1540414, 3080828, 3851035, 5391449, 6161656, 7702070, 10782898, 15404140, 21565796, 26957245, 30808280, 43131592, 53914490, 107828980, 215657960]

約数ペア:

[(1, 215657960), (2, 107828980), (4, 53914490), (5, 43131592), (7, 30808280), (8, 26957245), (10, 21565796), (14, 15404140), (20, 10782898), (28, 7702070), (35, 6161656), (40, 5391449), (56, 3851035), (70, 3080828), (140, 1540414), (280, 770207)]