20217380168

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{1291}}^1\times {\mathrm{17959}}^1$

素因数の和:19365

約数の個数: 32

約数和(自身を含む): 38287128000

約数和(自身を除く): 18069747832

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 1291, 2582, 5164, 10328, 17959, 35918, 71836, 140719, 143672, 281438, 562876, 1125752, 1957531, 3915062, 7830124, 15660248, 23185069, 46370138, 92740276, 185480552, 2527172521, 5054345042, 10108690084, 20217380168]

約数ペア:

[(1, 20217380168), (2, 10108690084), (4, 5054345042), (8, 2527172521), (109, 185480552), (218, 92740276), (436, 46370138), (872, 23185069), (1291, 15660248), (2582, 7830124), (5164, 3915062), (10328, 1957531), (17959, 1125752), (35918, 562876), (71836, 281438), (140719, 143672)]