81380700

素因数分解:

$2^2\times 3^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:243

約数の個数: 216

約数和(自身を含む): 281513232

約数和(自身を除く): 200132532

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, 81, 85, 90, 100, 102, 108, 135, 150, 153, 162, 170, 180, 197, 204, 225, 243, 255, 270, 300, 306, 324, 340, 394, 405, 425, 450, 459, 486, 510, 540, 591, 612, 675, 765, 788, 810, 850, 900, 918, 972, 985, 1020, 1182, 1215, 1275, 1350, 1377, 1530, 1620, 1700, 1773, 1836, 1970, 2025, 2295, 2364, 2430, 2550, 2700, 2754, 2955, 3060, 3349, 3546, 3825, 3940, 4050, 4131, 4590, 4860, 4925, 5100, 5319, 5508, 5910, 6075, 6698, 6885, 7092, 7650, 8100, 8262, 8865, 9180, 9850, 10047, 10638, 11475, 11820, 12150, 13396, 13770, 14775, 15300, 15957, 16524, 16745, 17730, 19700, 20094, 20655, 21276, 22950, 24300, 26595, 27540, 29550, 30141, 31914, 33490, 34425, 35460, 40188, 41310, 44325, 45900, 47871, 50235, 53190, 59100, 60282, 63828, 66980, 68850, 79785, 82620, 83725, 88650, 90423, 95742, 100470, 103275, 106380, 120564, 132975, 137700, 150705, 159570, 167450, 177300, 180846, 191484, 200940, 206550, 239355, 251175, 265950, 271269, 301410, 319140, 334900, 361692, 398925, 413100, 452115, 478710, 502350, 531900, 542538, 602820, 753525, 797850, 813807, 904230, 957420, 1004700, 1085076, 1196775, 1356345, 1507050, 1595700, 1627614, 1808460, 2260575, 2393550, 2712690, 3014100, 3255228, 4069035, 4521150, 4787100, 5425380, 6781725, 8138070, 9042300, 13563450, 16276140, 20345175, 27126900, 40690350, 81380700]

約数ペア:

[(1, 81380700), (2, 40690350), (3, 27126900), (4, 20345175), (5, 16276140), (6, 13563450), (9, 9042300), (10, 8138070), (12, 6781725), (15, 5425380), (17, 4787100), (18, 4521150), (20, 4069035), (25, 3255228), (27, 3014100), (30, 2712690), (34, 2393550), (36, 2260575), (45, 1808460), (50, 1627614), (51, 1595700), (54, 1507050), (60, 1356345), (68, 1196775), (75, 1085076), (81, 1004700), (85, 957420), (90, 904230), (100, 813807), (102, 797850), (108, 753525), (135, 602820), (150, 542538), (153, 531900), (162, 502350), (170, 478710), (180, 452115), (197, 413100), (204, 398925), (225, 361692), (243, 334900), (255, 319140), (270, 301410), (300, 271269), (306, 265950), (324, 251175), (340, 239355), (394, 206550), (405, 200940), (425, 191484), (450, 180846), (459, 177300), (486, 167450), (510, 159570), (540, 150705), (591, 137700), (612, 132975), (675, 120564), (765, 106380), (788, 103275), (810, 100470), (850, 95742), (900, 90423), (918, 88650), (972, 83725), (985, 82620), (1020, 79785), (1182, 68850), (1215, 66980), (1275, 63828), (1350, 60282), (1377, 59100), (1530, 53190), (1620, 50235), (1700, 47871), (1773, 45900), (1836, 44325), (1970, 41310), (2025, 40188), (2295, 35460), (2364, 34425), (2430, 33490), (2550, 31914), (2700, 30141), (2754, 29550), (2955, 27540), (3060, 26595), (3349, 24300), (3546, 22950), (3825, 21276), (3940, 20655), (4050, 20094), (4131, 19700), (4590, 17730), (4860, 16745), (4925, 16524), (5100, 15957), (5319, 15300), (5508, 14775), (5910, 13770), (6075, 13396), (6698, 12150), (6885, 11820), (7092, 11475), (7650, 10638), (8100, 10047), (8262, 9850), (8865, 9180)]