18664960

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:363

約数の個数: 80

約数和(自身を含む): 46845216

約数和(自身を除く): 28180256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 317, 320, 368, 460, 512, 634, 640, 736, 920, 1268, 1280, 1472, 1585, 1840, 2536, 2560, 2944, 3170, 3680, 5072, 5888, 6340, 7291, 7360, 10144, 11776, 12680, 14582, 14720, 20288, 25360, 29164, 29440, 36455, 40576, 50720, 58328, 58880, 72910, 81152, 101440, 116656, 145820, 162304, 202880, 233312, 291640, 405760, 466624, 583280, 811520, 933248, 1166560, 1866496, 2333120, 3732992, 4666240, 9332480, 18664960]

約数ペア:

[(1, 18664960), (2, 9332480), (4, 4666240), (5, 3732992), (8, 2333120), (10, 1866496), (16, 1166560), (20, 933248), (23, 811520), (32, 583280), (40, 466624), (46, 405760), (64, 291640), (80, 233312), (92, 202880), (115, 162304), (128, 145820), (160, 116656), (184, 101440), (230, 81152), (256, 72910), (317, 58880), (320, 58328), (368, 50720), (460, 40576), (512, 36455), (634, 29440), (640, 29164), (736, 25360), (920, 20288), (1268, 14720), (1280, 14582), (1472, 12680), (1585, 11776), (1840, 10144), (2536, 7360), (2560, 7291), (2944, 6340), (3170, 5888), (3680, 5072)]