21721444000

素因数分解:

$2^5\times 5^3\times {\mathrm{17}}^1\times {\mathrm{319433}}^1$

素因数の和:319475

約数の個数: 96

約数和(自身を含む): 56509152336

約数和(自身を除く): 34787708336

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 125, 136, 160, 170, 200, 250, 272, 340, 400, 425, 500, 544, 680, 800, 850, 1000, 1360, 1700, 2000, 2125, 2720, 3400, 4000, 4250, 6800, 8500, 13600, 17000, 34000, 68000, 319433, 638866, 1277732, 1597165, 2555464, 3194330, 5110928, 5430361, 6388660, 7985825, 10221856, 10860722, 12777320, 15971650, 21721444, 25554640, 27151805, 31943300, 39929125, 43442888, 51109280, 54303610, 63886600, 79858250, 86885776, 108607220, 127773200, 135759025, 159716500, 173771552, 217214440, 255546400, 271518050, 319433000, 434428880, 543036100, 638866000, 678795125, 868857760, 1086072200, 1277732000, 1357590250, 2172144400, 2715180500, 4344288800, 5430361000, 10860722000, 21721444000]

約数ペア:

[(1, 21721444000), (2, 10860722000), (4, 5430361000), (5, 4344288800), (8, 2715180500), (10, 2172144400), (16, 1357590250), (17, 1277732000), (20, 1086072200), (25, 868857760), (32, 678795125), (34, 638866000), (40, 543036100), (50, 434428880), (68, 319433000), (80, 271518050), (85, 255546400), (100, 217214440), (125, 173771552), (136, 159716500), (160, 135759025), (170, 127773200), (200, 108607220), (250, 86885776), (272, 79858250), (340, 63886600), (400, 54303610), (425, 51109280), (500, 43442888), (544, 39929125), (680, 31943300), (800, 27151805), (850, 25554640), (1000, 21721444), (1360, 15971650), (1700, 12777320), (2000, 10860722), (2125, 10221856), (2720, 7985825), (3400, 6388660), (4000, 5430361), (4250, 5110928), (6800, 3194330), (8500, 2555464), (13600, 1597165), (17000, 1277732), (34000, 638866), (68000, 319433)]