20387568

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 56067840

約数和(自身を除く): 35680272

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 59, 69, 92, 118, 138, 177, 184, 236, 276, 313, 354, 368, 472, 552, 626, 708, 939, 944, 1104, 1252, 1357, 1416, 1878, 2504, 2714, 2832, 3756, 4071, 5008, 5428, 7199, 7512, 8142, 10856, 14398, 15024, 16284, 18467, 21597, 21712, 28796, 32568, 36934, 43194, 55401, 57592, 65136, 73868, 86388, 110802, 115184, 147736, 172776, 221604, 295472, 345552, 424741, 443208, 849482, 886416, 1274223, 1698964, 2548446, 3397928, 5096892, 6795856, 10193784, 20387568]

約数ペア:

[(1, 20387568), (2, 10193784), (3, 6795856), (4, 5096892), (6, 3397928), (8, 2548446), (12, 1698964), (16, 1274223), (23, 886416), (24, 849482), (46, 443208), (48, 424741), (59, 345552), (69, 295472), (92, 221604), (118, 172776), (138, 147736), (177, 115184), (184, 110802), (236, 86388), (276, 73868), (313, 65136), (354, 57592), (368, 55401), (472, 43194), (552, 36934), (626, 32568), (708, 28796), (939, 21712), (944, 21597), (1104, 18467), (1252, 16284), (1357, 15024), (1416, 14398), (1878, 10856), (2504, 8142), (2714, 7512), (2832, 7199), (3756, 5428), (4071, 5008)]