20979312

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:678

約数の個数: 80

約数和(自身を含む): 58472448

約数和(自身を除く): 37493136

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 31, 46, 48, 62, 69, 92, 93, 124, 138, 184, 186, 248, 276, 368, 372, 496, 552, 613, 713, 744, 1104, 1226, 1426, 1488, 1839, 2139, 2452, 2852, 3678, 4278, 4904, 5704, 7356, 8556, 9808, 11408, 14099, 14712, 17112, 19003, 28198, 29424, 34224, 38006, 42297, 56396, 57009, 76012, 84594, 112792, 114018, 152024, 169188, 225584, 228036, 304048, 338376, 437069, 456072, 676752, 874138, 912144, 1311207, 1748276, 2622414, 3496552, 5244828, 6993104, 10489656, 20979312]

約数ペア:

[(1, 20979312), (2, 10489656), (3, 6993104), (4, 5244828), (6, 3496552), (8, 2622414), (12, 1748276), (16, 1311207), (23, 912144), (24, 874138), (31, 676752), (46, 456072), (48, 437069), (62, 338376), (69, 304048), (92, 228036), (93, 225584), (124, 169188), (138, 152024), (184, 114018), (186, 112792), (248, 84594), (276, 76012), (368, 57009), (372, 56396), (496, 42297), (552, 38006), (613, 34224), (713, 29424), (744, 28198), (1104, 19003), (1226, 17112), (1426, 14712), (1488, 14099), (1839, 11408), (2139, 9808), (2452, 8556), (2852, 7356), (3678, 5704), (4278, 4904)]