18707280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3389}}^1$

素因数の和:3428

約数の個数: 80

約数和(自身を含む): 60531840

約数和(自身を除く): 41824560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3389, 5520, 6778, 10167, 13556, 16945, 20334, 27112, 33890, 40668, 50835, 54224, 67780, 77947, 81336, 101670, 135560, 155894, 162672, 203340, 233841, 271120, 311788, 389735, 406680, 467682, 623576, 779470, 813360, 935364, 1169205, 1247152, 1558940, 1870728, 2338410, 3117880, 3741456, 4676820, 6235760, 9353640, 18707280]

約数ペア:

[(1, 18707280), (2, 9353640), (3, 6235760), (4, 4676820), (5, 3741456), (6, 3117880), (8, 2338410), (10, 1870728), (12, 1558940), (15, 1247152), (16, 1169205), (20, 935364), (23, 813360), (24, 779470), (30, 623576), (40, 467682), (46, 406680), (48, 389735), (60, 311788), (69, 271120), (80, 233841), (92, 203340), (115, 162672), (120, 155894), (138, 135560), (184, 101670), (230, 81336), (240, 77947), (276, 67780), (345, 54224), (368, 50835), (460, 40668), (552, 33890), (690, 27112), (920, 20334), (1104, 16945), (1380, 13556), (1840, 10167), (2760, 6778), (3389, 5520)]