28147155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 49277184

約数和(自身を除く): 21130029

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 151, 215, 255, 289, 453, 645, 731, 755, 867, 1445, 2193, 2265, 2567, 3655, 4335, 6493, 7701, 10965, 12427, 12835, 19479, 32465, 37281, 38505, 43639, 62135, 97395, 110381, 130917, 186405, 218195, 331143, 551905, 654585, 1655715, 1876477, 5629431, 9382385, 28147155]

約数ペア:

[(1, 28147155), (3, 9382385), (5, 5629431), (15, 1876477), (17, 1655715), (43, 654585), (51, 551905), (85, 331143), (129, 218195), (151, 186405), (215, 130917), (255, 110381), (289, 97395), (453, 62135), (645, 43639), (731, 38505), (755, 37281), (867, 32465), (1445, 19479), (2193, 12835), (2265, 12427), (2567, 10965), (3655, 7701), (4335, 6493)]