20855009412

素因数分解:

$2^2\times 3^5\times {\mathrm{2357}}^1\times {\mathrm{9103}}^1$

素因数の和:11479

約数の個数: 72

約数和(自身を含む): 54698507136

約数和(自身を除く): 33843497724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972, 2357, 4714, 7071, 9103, 9428, 14142, 18206, 21213, 27309, 28284, 36412, 42426, 54618, 63639, 81927, 84852, 109236, 127278, 163854, 190917, 245781, 254556, 327708, 381834, 491562, 572751, 737343, 763668, 983124, 1145502, 1474686, 2212029, 2291004, 2949372, 4424058, 8848116, 21455771, 42911542, 64367313, 85823084, 128734626, 193101939, 257469252, 386203878, 579305817, 772407756, 1158611634, 1737917451, 2317223268, 3475834902, 5213752353, 6951669804, 10427504706, 20855009412]

約数ペア:

[(1, 20855009412), (2, 10427504706), (3, 6951669804), (4, 5213752353), (6, 3475834902), (9, 2317223268), (12, 1737917451), (18, 1158611634), (27, 772407756), (36, 579305817), (54, 386203878), (81, 257469252), (108, 193101939), (162, 128734626), (243, 85823084), (324, 64367313), (486, 42911542), (972, 21455771), (2357, 8848116), (4714, 4424058), (7071, 2949372), (9103, 2291004), (9428, 2212029), (14142, 1474686), (18206, 1145502), (21213, 983124), (27309, 763668), (28284, 737343), (36412, 572751), (42426, 491562), (54618, 381834), (63639, 327708), (81927, 254556), (84852, 245781), (109236, 190917), (127278, 163854)]