217822780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{12251}}^1$

素因数の和:12394

約数の個数: 48

約数和(自身を含む): 526934016

約数和(自身を除く): 309111236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1778, 2540, 3556, 4445, 8890, 12251, 17780, 24502, 49004, 61255, 85757, 122510, 171514, 245020, 343028, 428785, 857570, 1555877, 1715140, 3111754, 6223508, 7779385, 10891139, 15558770, 21782278, 31117540, 43564556, 54455695, 108911390, 217822780]

約数ペア:

[(1, 217822780), (2, 108911390), (4, 54455695), (5, 43564556), (7, 31117540), (10, 21782278), (14, 15558770), (20, 10891139), (28, 7779385), (35, 6223508), (70, 3111754), (127, 1715140), (140, 1555877), (254, 857570), (508, 428785), (635, 343028), (889, 245020), (1270, 171514), (1778, 122510), (2540, 85757), (3556, 61255), (4445, 49004), (8890, 24502), (12251, 17780)]