20801016

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41406984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 46, 53, 54, 69, 72, 79, 92, 106, 108, 138, 158, 159, 184, 207, 212, 216, 237, 276, 316, 318, 414, 424, 474, 477, 552, 621, 632, 636, 711, 828, 948, 954, 1219, 1242, 1272, 1422, 1431, 1656, 1817, 1896, 1908, 2133, 2438, 2484, 2844, 2862, 3634, 3657, 3816, 4187, 4266, 4876, 4968, 5451, 5688, 5724, 7268, 7314, 8374, 8532, 9752, 10902, 10971, 11448, 12561, 14536, 14628, 16353, 16748, 17064, 21804, 21942, 25122, 29256, 32706, 32913, 33496, 37683, 43608, 43884, 49059, 50244, 65412, 65826, 75366, 87768, 96301, 98118, 100488, 113049, 130824, 131652, 150732, 192602, 196236, 226098, 263304, 288903, 301464, 385204, 392472, 452196, 577806, 770408, 866709, 904392, 1155612, 1733418, 2311224, 2600127, 3466836, 5200254, 6933672, 10400508, 20801016]

約数ペア:

[(1, 20801016), (2, 10400508), (3, 6933672), (4, 5200254), (6, 3466836), (8, 2600127), (9, 2311224), (12, 1733418), (18, 1155612), (23, 904392), (24, 866709), (27, 770408), (36, 577806), (46, 452196), (53, 392472), (54, 385204), (69, 301464), (72, 288903), (79, 263304), (92, 226098), (106, 196236), (108, 192602), (138, 150732), (158, 131652), (159, 130824), (184, 113049), (207, 100488), (212, 98118), (216, 96301), (237, 87768), (276, 75366), (316, 65826), (318, 65412), (414, 50244), (424, 49059), (474, 43884), (477, 43608), (552, 37683), (621, 33496), (632, 32913), (636, 32706), (711, 29256), (828, 25122), (948, 21942), (954, 21804), (1219, 17064), (1242, 16748), (1272, 16353), (1422, 14628), (1431, 14536), (1656, 12561), (1817, 11448), (1896, 10971), (1908, 10902), (2133, 9752), (2438, 8532), (2484, 8374), (2844, 7314), (2862, 7268), (3634, 5724), (3657, 5688), (3816, 5451), (4187, 4968), (4266, 4876)]