20485872

素因数分解:

$2^4\times 3^5\times {\mathrm{11}}^1\times {\mathrm{479}}^1$

素因数の和:513

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 44509968

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 72, 81, 88, 99, 108, 132, 144, 162, 176, 198, 216, 243, 264, 297, 324, 396, 432, 479, 486, 528, 594, 648, 792, 891, 958, 972, 1188, 1296, 1437, 1584, 1782, 1916, 1944, 2376, 2673, 2874, 3564, 3832, 3888, 4311, 4752, 5269, 5346, 5748, 7128, 7664, 8622, 10538, 10692, 11496, 12933, 14256, 15807, 17244, 21076, 21384, 22992, 25866, 31614, 34488, 38799, 42152, 42768, 47421, 51732, 63228, 68976, 77598, 84304, 94842, 103464, 116397, 126456, 142263, 155196, 189684, 206928, 232794, 252912, 284526, 310392, 379368, 426789, 465588, 569052, 620784, 758736, 853578, 931176, 1138104, 1280367, 1707156, 1862352, 2276208, 2560734, 3414312, 5121468, 6828624, 10242936, 20485872]

約数ペア:

[(1, 20485872), (2, 10242936), (3, 6828624), (4, 5121468), (6, 3414312), (8, 2560734), (9, 2276208), (11, 1862352), (12, 1707156), (16, 1280367), (18, 1138104), (22, 931176), (24, 853578), (27, 758736), (33, 620784), (36, 569052), (44, 465588), (48, 426789), (54, 379368), (66, 310392), (72, 284526), (81, 252912), (88, 232794), (99, 206928), (108, 189684), (132, 155196), (144, 142263), (162, 126456), (176, 116397), (198, 103464), (216, 94842), (243, 84304), (264, 77598), (297, 68976), (324, 63228), (396, 51732), (432, 47421), (479, 42768), (486, 42152), (528, 38799), (594, 34488), (648, 31614), (792, 25866), (891, 22992), (958, 21384), (972, 21076), (1188, 17244), (1296, 15807), (1437, 14256), (1584, 12933), (1782, 11496), (1916, 10692), (1944, 10538), (2376, 8622), (2673, 7664), (2874, 7128), (3564, 5748), (3832, 5346), (3888, 5269), (4311, 4752)]