28689180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36781}}^1$

素因数の和:36806

約数の個数: 48

約数和(自身を含む): 86511264

約数和(自身を除く): 57822084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36781, 73562, 110343, 147124, 183905, 220686, 367810, 441372, 478153, 551715, 735620, 956306, 1103430, 1434459, 1912612, 2206860, 2390765, 2868918, 4781530, 5737836, 7172295, 9563060, 14344590, 28689180]

約数ペア:

[(1, 28689180), (2, 14344590), (3, 9563060), (4, 7172295), (5, 5737836), (6, 4781530), (10, 2868918), (12, 2390765), (13, 2206860), (15, 1912612), (20, 1434459), (26, 1103430), (30, 956306), (39, 735620), (52, 551715), (60, 478153), (65, 441372), (78, 367810), (130, 220686), (156, 183905), (195, 147124), (260, 110343), (390, 73562), (780, 36781)]