20352852

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 55959176

約数和(自身を除く): 35606324

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 157, 234, 277, 314, 468, 471, 554, 628, 831, 942, 1108, 1413, 1662, 1884, 2041, 2493, 2826, 3324, 3601, 4082, 4986, 5652, 6123, 7202, 8164, 9972, 10803, 12246, 14404, 18369, 21606, 24492, 32409, 36738, 43212, 43489, 64818, 73476, 86978, 129636, 130467, 173956, 260934, 391401, 521868, 565357, 782802, 1130714, 1565604, 1696071, 2261428, 3392142, 5088213, 6784284, 10176426, 20352852]

約数ペア:

[(1, 20352852), (2, 10176426), (3, 6784284), (4, 5088213), (6, 3392142), (9, 2261428), (12, 1696071), (13, 1565604), (18, 1130714), (26, 782802), (36, 565357), (39, 521868), (52, 391401), (78, 260934), (117, 173956), (156, 130467), (157, 129636), (234, 86978), (277, 73476), (314, 64818), (468, 43489), (471, 43212), (554, 36738), (628, 32409), (831, 24492), (942, 21606), (1108, 18369), (1413, 14404), (1662, 12246), (1884, 10803), (2041, 9972), (2493, 8164), (2826, 7202), (3324, 6123), (3601, 5652), (4082, 4986)]