20499804

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 120

約数和(自身を含む): 59954048

約数和(自身を除く): 39454244

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 31, 36, 39, 52, 54, 62, 78, 81, 93, 108, 117, 124, 156, 157, 162, 186, 234, 279, 314, 324, 351, 372, 403, 468, 471, 558, 628, 702, 806, 837, 942, 1053, 1116, 1209, 1404, 1413, 1612, 1674, 1884, 2041, 2106, 2418, 2511, 2826, 3348, 3627, 4082, 4212, 4239, 4836, 4867, 5022, 5652, 6123, 7254, 8164, 8478, 9734, 10044, 10881, 12246, 12717, 14508, 14601, 16956, 18369, 19468, 21762, 24492, 25434, 29202, 32643, 36738, 43524, 43803, 50868, 55107, 58404, 63271, 65286, 73476, 87606, 110214, 126542, 130572, 131409, 165321, 175212, 189813, 220428, 253084, 262818, 330642, 379626, 394227, 525636, 569439, 661284, 759252, 788454, 1138878, 1576908, 1708317, 2277756, 3416634, 5124951, 6833268, 10249902, 20499804]

約数ペア:

[(1, 20499804), (2, 10249902), (3, 6833268), (4, 5124951), (6, 3416634), (9, 2277756), (12, 1708317), (13, 1576908), (18, 1138878), (26, 788454), (27, 759252), (31, 661284), (36, 569439), (39, 525636), (52, 394227), (54, 379626), (62, 330642), (78, 262818), (81, 253084), (93, 220428), (108, 189813), (117, 175212), (124, 165321), (156, 131409), (157, 130572), (162, 126542), (186, 110214), (234, 87606), (279, 73476), (314, 65286), (324, 63271), (351, 58404), (372, 55107), (403, 50868), (468, 43803), (471, 43524), (558, 36738), (628, 32643), (702, 29202), (806, 25434), (837, 24492), (942, 21762), (1053, 19468), (1116, 18369), (1209, 16956), (1404, 14601), (1413, 14508), (1612, 12717), (1674, 12246), (1884, 10881), (2041, 10044), (2106, 9734), (2418, 8478), (2511, 8164), (2826, 7254), (3348, 6123), (3627, 5652), (4082, 5022), (4212, 4867), (4239, 4836)]