20425500

素因数分解:

$2^2\times 3^3\times 5^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:134

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 50336100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 27, 30, 34, 36, 45, 50, 51, 54, 60, 68, 75, 85, 89, 90, 100, 102, 108, 125, 135, 150, 153, 170, 178, 180, 204, 225, 250, 255, 267, 270, 300, 306, 340, 356, 375, 425, 445, 450, 459, 500, 510, 534, 540, 612, 675, 750, 765, 801, 850, 890, 900, 918, 1020, 1068, 1125, 1275, 1335, 1350, 1500, 1513, 1530, 1602, 1700, 1780, 1836, 2125, 2225, 2250, 2295, 2403, 2550, 2670, 2700, 3026, 3060, 3204, 3375, 3825, 4005, 4250, 4450, 4500, 4539, 4590, 4806, 5100, 5340, 6052, 6375, 6675, 6750, 7565, 7650, 8010, 8500, 8900, 9078, 9180, 9612, 11125, 11475, 12015, 12750, 13350, 13500, 13617, 15130, 15300, 16020, 18156, 19125, 20025, 22250, 22695, 22950, 24030, 25500, 26700, 27234, 30260, 33375, 37825, 38250, 40050, 40851, 44500, 45390, 45900, 48060, 54468, 57375, 60075, 66750, 68085, 75650, 76500, 80100, 81702, 90780, 100125, 113475, 114750, 120150, 133500, 136170, 151300, 163404, 189125, 200250, 204255, 226950, 229500, 240300, 272340, 300375, 340425, 378250, 400500, 408510, 453900, 567375, 600750, 680850, 756500, 817020, 1021275, 1134750, 1201500, 1361700, 1702125, 2042550, 2269500, 3404250, 4085100, 5106375, 6808500, 10212750, 20425500]

約数ペア:

[(1, 20425500), (2, 10212750), (3, 6808500), (4, 5106375), (5, 4085100), (6, 3404250), (9, 2269500), (10, 2042550), (12, 1702125), (15, 1361700), (17, 1201500), (18, 1134750), (20, 1021275), (25, 817020), (27, 756500), (30, 680850), (34, 600750), (36, 567375), (45, 453900), (50, 408510), (51, 400500), (54, 378250), (60, 340425), (68, 300375), (75, 272340), (85, 240300), (89, 229500), (90, 226950), (100, 204255), (102, 200250), (108, 189125), (125, 163404), (135, 151300), (150, 136170), (153, 133500), (170, 120150), (178, 114750), (180, 113475), (204, 100125), (225, 90780), (250, 81702), (255, 80100), (267, 76500), (270, 75650), (300, 68085), (306, 66750), (340, 60075), (356, 57375), (375, 54468), (425, 48060), (445, 45900), (450, 45390), (459, 44500), (500, 40851), (510, 40050), (534, 38250), (540, 37825), (612, 33375), (675, 30260), (750, 27234), (765, 26700), (801, 25500), (850, 24030), (890, 22950), (900, 22695), (918, 22250), (1020, 20025), (1068, 19125), (1125, 18156), (1275, 16020), (1335, 15300), (1350, 15130), (1500, 13617), (1513, 13500), (1530, 13350), (1602, 12750), (1700, 12015), (1780, 11475), (1836, 11125), (2125, 9612), (2225, 9180), (2250, 9078), (2295, 8900), (2403, 8500), (2550, 8010), (2670, 7650), (2700, 7565), (3026, 6750), (3060, 6675), (3204, 6375), (3375, 6052), (3825, 5340), (4005, 5100), (4250, 4806), (4450, 4590), (4500, 4539)]