20481272

素因数分解:

$2^3\times 7^1\times {\mathrm{487}}^1\times {\mathrm{751}}^1$

素因数の和:1251

約数の個数: 32

約数和(自身を含む): 44037120

約数和(自身を除く): 23555848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 487, 751, 974, 1502, 1948, 3004, 3409, 3896, 5257, 6008, 6818, 10514, 13636, 21028, 27272, 42056, 365737, 731474, 1462948, 2560159, 2925896, 5120318, 10240636, 20481272]

約数ペア:

[(1, 20481272), (2, 10240636), (4, 5120318), (7, 2925896), (8, 2560159), (14, 1462948), (28, 731474), (56, 365737), (487, 42056), (751, 27272), (974, 21028), (1502, 13636), (1948, 10514), (3004, 6818), (3409, 6008), (3896, 5257)]