28117840

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2683}}^1$

素因数の和:2827

約数の個数: 40

約数和(自身を含む): 65897568

約数和(自身を除く): 37779728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 2683, 5240, 5366, 10480, 10732, 13415, 21464, 26830, 42928, 53660, 107320, 214640, 351473, 702946, 1405892, 1757365, 2811784, 3514730, 5623568, 7029460, 14058920, 28117840]

約数ペア:

[(1, 28117840), (2, 14058920), (4, 7029460), (5, 5623568), (8, 3514730), (10, 2811784), (16, 1757365), (20, 1405892), (40, 702946), (80, 351473), (131, 214640), (262, 107320), (524, 53660), (655, 42928), (1048, 26830), (1310, 21464), (2096, 13415), (2620, 10732), (2683, 10480), (5240, 5366)]