20713000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1$

素因数の和:308

約数の個数: 128

約数和(自身を含む): 60652800

約数和(自身を除く): 39939800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 88, 100, 110, 125, 140, 154, 175, 200, 220, 250, 269, 275, 280, 308, 350, 385, 440, 500, 538, 550, 616, 700, 770, 875, 1000, 1076, 1100, 1345, 1375, 1400, 1540, 1750, 1883, 1925, 2152, 2200, 2690, 2750, 2959, 3080, 3500, 3766, 3850, 5380, 5500, 5918, 6725, 7000, 7532, 7700, 9415, 9625, 10760, 11000, 11836, 13450, 14795, 15064, 15400, 18830, 19250, 20713, 23672, 26900, 29590, 33625, 37660, 38500, 41426, 47075, 53800, 59180, 67250, 73975, 75320, 77000, 82852, 94150, 103565, 118360, 134500, 147950, 165704, 188300, 207130, 235375, 269000, 295900, 369875, 376600, 414260, 470750, 517825, 591800, 739750, 828520, 941500, 1035650, 1479500, 1883000, 2071300, 2589125, 2959000, 4142600, 5178250, 10356500, 20713000]

約数ペア:

[(1, 20713000), (2, 10356500), (4, 5178250), (5, 4142600), (7, 2959000), (8, 2589125), (10, 2071300), (11, 1883000), (14, 1479500), (20, 1035650), (22, 941500), (25, 828520), (28, 739750), (35, 591800), (40, 517825), (44, 470750), (50, 414260), (55, 376600), (56, 369875), (70, 295900), (77, 269000), (88, 235375), (100, 207130), (110, 188300), (125, 165704), (140, 147950), (154, 134500), (175, 118360), (200, 103565), (220, 94150), (250, 82852), (269, 77000), (275, 75320), (280, 73975), (308, 67250), (350, 59180), (385, 53800), (440, 47075), (500, 41426), (538, 38500), (550, 37660), (616, 33625), (700, 29590), (770, 26900), (875, 23672), (1000, 20713), (1076, 19250), (1100, 18830), (1345, 15400), (1375, 15064), (1400, 14795), (1540, 13450), (1750, 11836), (1883, 11000), (1925, 10760), (2152, 9625), (2200, 9415), (2690, 7700), (2750, 7532), (2959, 7000), (3080, 6725), (3500, 5918), (3766, 5500), (3850, 5380)]