20866994416

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{454579}}^1$

素因数の和:454757

約数の個数: 40

約数和(自身を含む): 42839619200

約数和(自身を除く): 21972624784

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 151, 152, 302, 304, 604, 1208, 2416, 2869, 5738, 11476, 22952, 45904, 454579, 909158, 1818316, 3636632, 7273264, 8637001, 17274002, 34548004, 68641429, 69096008, 137282858, 138192016, 274565716, 549131432, 1098262864, 1304187151, 2608374302, 5216748604, 10433497208, 20866994416]

約数ペア:

[(1, 20866994416), (2, 10433497208), (4, 5216748604), (8, 2608374302), (16, 1304187151), (19, 1098262864), (38, 549131432), (76, 274565716), (151, 138192016), (152, 137282858), (302, 69096008), (304, 68641429), (604, 34548004), (1208, 17274002), (2416, 8637001), (2869, 7273264), (5738, 3636632), (11476, 1818316), (22952, 909158), (45904, 454579)]