20971710

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1523}}^1$

素因数の和:1559

約数の個数: 80

約数和(自身を含む): 59746896

約数和(自身を除く): 38775186

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1523, 1530, 2295, 2754, 3046, 4569, 4590, 6885, 7615, 9138, 13707, 13770, 15230, 22845, 25891, 27414, 41121, 45690, 51782, 68535, 77673, 82242, 123363, 129455, 137070, 155346, 205605, 233019, 246726, 258910, 388365, 411210, 466038, 616815, 699057, 776730, 1165095, 1233630, 1398114, 2097171, 2330190, 3495285, 4194342, 6990570, 10485855, 20971710]

約数ペア:

[(1, 20971710), (2, 10485855), (3, 6990570), (5, 4194342), (6, 3495285), (9, 2330190), (10, 2097171), (15, 1398114), (17, 1233630), (18, 1165095), (27, 776730), (30, 699057), (34, 616815), (45, 466038), (51, 411210), (54, 388365), (81, 258910), (85, 246726), (90, 233019), (102, 205605), (135, 155346), (153, 137070), (162, 129455), (170, 123363), (255, 82242), (270, 77673), (306, 68535), (405, 51782), (459, 45690), (510, 41121), (765, 27414), (810, 25891), (918, 22845), (1377, 15230), (1523, 13770), (1530, 13707), (2295, 9138), (2754, 7615), (3046, 6885), (4569, 4590)]