20406508875

素因数分解:

$3^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{355669}}^1$

素因数の和:355710

約数の個数: 64

約数和(自身を含む): 39948854400

約数和(自身を除く): 19542345525

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 125, 135, 153, 225, 255, 375, 425, 459, 675, 765, 1125, 1275, 2125, 2295, 3375, 3825, 6375, 11475, 19125, 57375, 355669, 1067007, 1778345, 3201021, 5335035, 6046373, 8891725, 9603063, 16005105, 18139119, 26675175, 30231865, 44458625, 48015315, 54417357, 80025525, 90695595, 133375875, 151159325, 163252071, 240076575, 272086785, 400127625, 453477975, 755796625, 816260355, 1200382875, 1360433925, 2267389875, 4081301775, 6802169625, 20406508875]

約数ペア:

[(1, 20406508875), (3, 6802169625), (5, 4081301775), (9, 2267389875), (15, 1360433925), (17, 1200382875), (25, 816260355), (27, 755796625), (45, 453477975), (51, 400127625), (75, 272086785), (85, 240076575), (125, 163252071), (135, 151159325), (153, 133375875), (225, 90695595), (255, 80025525), (375, 54417357), (425, 48015315), (459, 44458625), (675, 30231865), (765, 26675175), (1125, 18139119), (1275, 16005105), (2125, 9603063), (2295, 8891725), (3375, 6046373), (3825, 5335035), (6375, 3201021), (11475, 1778345), (19125, 1067007), (57375, 355669)]