209758520

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{49009}}^1$

素因数の和:49127

約数の個数: 32

約数和(自身を含む): 476377200

約数和(自身を除く): 266618680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 49009, 98018, 196036, 245045, 392072, 490090, 980180, 1960360, 5243963, 10487926, 20975852, 26219815, 41951704, 52439630, 104879260, 209758520]

約数ペア:

[(1, 209758520), (2, 104879260), (4, 52439630), (5, 41951704), (8, 26219815), (10, 20975852), (20, 10487926), (40, 5243963), (107, 1960360), (214, 980180), (428, 490090), (535, 392072), (856, 245045), (1070, 196036), (2140, 98018), (4280, 49009)]