201489520

素因数分解:

$2^4\times 5^1\times {\mathrm{2518619}}^1$

素因数の和:2518632

約数の個数: 20

約数和(自身を含む): 468463320

約数和(自身を除く): 266973800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2518619, 5037238, 10074476, 12593095, 20148952, 25186190, 40297904, 50372380, 100744760, 201489520]

約数ペア:

[(1, 201489520), (2, 100744760), (4, 50372380), (5, 40297904), (8, 25186190), (10, 20148952), (16, 12593095), (20, 10074476), (40, 5037238), (80, 2518619)]