20195985460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{463849}}^1$

素因数の和:464176

約数の個数: 48

約数和(自身を含む): 48626323200

約数和(自身を除く): 28430337740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 311, 622, 1244, 1555, 2177, 3110, 4354, 6220, 8708, 10885, 21770, 43540, 463849, 927698, 1855396, 2319245, 3246943, 4638490, 6493886, 9276980, 12987772, 16234715, 32469430, 64938860, 144257039, 288514078, 577028156, 721285195, 1009799273, 1442570390, 2019598546, 2885140780, 4039197092, 5048996365, 10097992730, 20195985460]

約数ペア:

[(1, 20195985460), (2, 10097992730), (4, 5048996365), (5, 4039197092), (7, 2885140780), (10, 2019598546), (14, 1442570390), (20, 1009799273), (28, 721285195), (35, 577028156), (70, 288514078), (140, 144257039), (311, 64938860), (622, 32469430), (1244, 16234715), (1555, 12987772), (2177, 9276980), (3110, 6493886), (4354, 4638490), (6220, 3246943), (8708, 2319245), (10885, 1855396), (21770, 927698), (43540, 463849)]