1917980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2339}}^1$

素因数の和:2389

約数の個数: 24

約数和(自身を含む): 4127760

約数和(自身を除く): 2209780

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2339, 4678, 9356, 11695, 23390, 46780, 95899, 191798, 383596, 479495, 958990, 1917980]

約数ペア:

[(1, 1917980), (2, 958990), (4, 479495), (5, 383596), (10, 191798), (20, 95899), (41, 46780), (82, 23390), (164, 11695), (205, 9356), (410, 4678), (820, 2339)]