12888850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 26248320

約数和(自身を除く): 13359470

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 130, 158, 251, 325, 395, 502, 650, 790, 1027, 1255, 1975, 2054, 2510, 3263, 3950, 5135, 6275, 6526, 10270, 12550, 16315, 19829, 25675, 32630, 39658, 51350, 81575, 99145, 163150, 198290, 257777, 495725, 515554, 991450, 1288885, 2577770, 6444425, 12888850]

約数ペア:

[(1, 12888850), (2, 6444425), (5, 2577770), (10, 1288885), (13, 991450), (25, 515554), (26, 495725), (50, 257777), (65, 198290), (79, 163150), (130, 99145), (158, 81575), (251, 51350), (325, 39658), (395, 32630), (502, 25675), (650, 19829), (790, 16315), (1027, 12550), (1255, 10270), (1975, 6526), (2054, 6275), (2510, 5135), (3263, 3950)]