251163180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{787}}^1$

素因数の和:1005

約数の個数: 120

約数和(自身を含む): 792913968

約数和(自身を除く): 541750788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 197, 270, 324, 394, 405, 540, 591, 787, 788, 810, 985, 1182, 1574, 1620, 1773, 1970, 2361, 2364, 2955, 3148, 3546, 3935, 3940, 4722, 5319, 5910, 7083, 7092, 7870, 8865, 9444, 10638, 11805, 11820, 14166, 15740, 15957, 17730, 21249, 21276, 23610, 26595, 28332, 31914, 35415, 35460, 42498, 47220, 53190, 63747, 63828, 70830, 79785, 84996, 106245, 106380, 127494, 141660, 155039, 159570, 212490, 254988, 310078, 318735, 319140, 424980, 465117, 620156, 637470, 775195, 930234, 1274940, 1395351, 1550390, 1860468, 2325585, 2790702, 3100780, 4186053, 4651170, 5581404, 6976755, 8372106, 9302340, 12558159, 13953510, 16744212, 20930265, 25116318, 27907020, 41860530, 50232636, 62790795, 83721060, 125581590, 251163180]

約数ペア:

[(1, 251163180), (2, 125581590), (3, 83721060), (4, 62790795), (5, 50232636), (6, 41860530), (9, 27907020), (10, 25116318), (12, 20930265), (15, 16744212), (18, 13953510), (20, 12558159), (27, 9302340), (30, 8372106), (36, 6976755), (45, 5581404), (54, 4651170), (60, 4186053), (81, 3100780), (90, 2790702), (108, 2325585), (135, 1860468), (162, 1550390), (180, 1395351), (197, 1274940), (270, 930234), (324, 775195), (394, 637470), (405, 620156), (540, 465117), (591, 424980), (787, 319140), (788, 318735), (810, 310078), (985, 254988), (1182, 212490), (1574, 159570), (1620, 155039), (1773, 141660), (1970, 127494), (2361, 106380), (2364, 106245), (2955, 84996), (3148, 79785), (3546, 70830), (3935, 63828), (3940, 63747), (4722, 53190), (5319, 47220), (5910, 42498), (7083, 35460), (7092, 35415), (7870, 31914), (8865, 28332), (9444, 26595), (10638, 23610), (11805, 21276), (11820, 21249), (14166, 17730), (15740, 15957)]