20655000

素因数分解:

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

素因数の和:58

約数の個数: 240

約数和(自身を含む): 76756680

約数和(自身を除く): 56101680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 25, 27, 30, 34, 36, 40, 45, 50, 51, 54, 60, 68, 72, 75, 81, 85, 90, 100, 102, 108, 120, 125, 135, 136, 150, 153, 162, 170, 180, 200, 204, 216, 225, 243, 250, 255, 270, 300, 306, 324, 340, 360, 375, 405, 408, 425, 450, 459, 486, 500, 510, 540, 600, 612, 625, 648, 675, 680, 750, 765, 810, 850, 900, 918, 972, 1000, 1020, 1080, 1125, 1215, 1224, 1250, 1275, 1350, 1377, 1500, 1530, 1620, 1700, 1800, 1836, 1875, 1944, 2025, 2040, 2125, 2250, 2295, 2430, 2500, 2550, 2700, 2754, 3000, 3060, 3240, 3375, 3400, 3672, 3750, 3825, 4050, 4131, 4250, 4500, 4590, 4860, 5000, 5100, 5400, 5508, 5625, 6075, 6120, 6375, 6750, 6885, 7500, 7650, 8100, 8262, 8500, 9000, 9180, 9720, 10125, 10200, 10625, 11016, 11250, 11475, 12150, 12750, 13500, 13770, 15000, 15300, 16200, 16524, 16875, 17000, 18360, 19125, 20250, 20655, 21250, 22500, 22950, 24300, 25500, 27000, 27540, 30375, 30600, 31875, 33048, 33750, 34425, 38250, 40500, 41310, 42500, 45000, 45900, 48600, 50625, 51000, 55080, 57375, 60750, 63750, 67500, 68850, 76500, 81000, 82620, 85000, 91800, 95625, 101250, 103275, 114750, 121500, 127500, 135000, 137700, 151875, 153000, 165240, 172125, 191250, 202500, 206550, 229500, 243000, 255000, 275400, 286875, 303750, 344250, 382500, 405000, 413100, 459000, 516375, 573750, 607500, 688500, 765000, 826200, 860625, 1032750, 1147500, 1215000, 1377000, 1721250, 2065500, 2295000, 2581875, 3442500, 4131000, 5163750, 6885000, 10327500, 20655000]

約数ペア:

[(1, 20655000), (2, 10327500), (3, 6885000), (4, 5163750), (5, 4131000), (6, 3442500), (8, 2581875), (9, 2295000), (10, 2065500), (12, 1721250), (15, 1377000), (17, 1215000), (18, 1147500), (20, 1032750), (24, 860625), (25, 826200), (27, 765000), (30, 688500), (34, 607500), (36, 573750), (40, 516375), (45, 459000), (50, 413100), (51, 405000), (54, 382500), (60, 344250), (68, 303750), (72, 286875), (75, 275400), (81, 255000), (85, 243000), (90, 229500), (100, 206550), (102, 202500), (108, 191250), (120, 172125), (125, 165240), (135, 153000), (136, 151875), (150, 137700), (153, 135000), (162, 127500), (170, 121500), (180, 114750), (200, 103275), (204, 101250), (216, 95625), (225, 91800), (243, 85000), (250, 82620), (255, 81000), (270, 76500), (300, 68850), (306, 67500), (324, 63750), (340, 60750), (360, 57375), (375, 55080), (405, 51000), (408, 50625), (425, 48600), (450, 45900), (459, 45000), (486, 42500), (500, 41310), (510, 40500), (540, 38250), (600, 34425), (612, 33750), (625, 33048), (648, 31875), (675, 30600), (680, 30375), (750, 27540), (765, 27000), (810, 25500), (850, 24300), (900, 22950), (918, 22500), (972, 21250), (1000, 20655), (1020, 20250), (1080, 19125), (1125, 18360), (1215, 17000), (1224, 16875), (1250, 16524), (1275, 16200), (1350, 15300), (1377, 15000), (1500, 13770), (1530, 13500), (1620, 12750), (1700, 12150), (1800, 11475), (1836, 11250), (1875, 11016), (1944, 10625), (2025, 10200), (2040, 10125), (2125, 9720), (2250, 9180), (2295, 9000), (2430, 8500), (2500, 8262), (2550, 8100), (2700, 7650), (2754, 7500), (3000, 6885), (3060, 6750), (3240, 6375), (3375, 6120), (3400, 6075), (3672, 5625), (3750, 5508), (3825, 5400), (4050, 5100), (4131, 5000), (4250, 4860), (4500, 4590)]