19746040

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1877}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 44621280

約数和(自身を除く): 24875240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 1877, 2104, 2630, 3754, 5260, 7508, 9385, 10520, 15016, 18770, 37540, 75080, 493651, 987302, 1974604, 2468255, 3949208, 4936510, 9873020, 19746040]

約数ペア:

[(1, 19746040), (2, 9873020), (4, 4936510), (5, 3949208), (8, 2468255), (10, 1974604), (20, 987302), (40, 493651), (263, 75080), (526, 37540), (1052, 18770), (1315, 15016), (1877, 10520), (2104, 9385), (2630, 7508), (3754, 5260)]