81351200

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:299

約数の個数: 144

約数和(自身を含む): 231235200

約数和(自身を除く): 149884000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 73, 80, 100, 112, 140, 146, 160, 175, 199, 200, 224, 280, 292, 350, 365, 398, 400, 511, 560, 584, 700, 730, 796, 800, 995, 1022, 1120, 1168, 1393, 1400, 1460, 1592, 1825, 1990, 2044, 2336, 2555, 2786, 2800, 2920, 3184, 3650, 3980, 4088, 4975, 5110, 5572, 5600, 5840, 6368, 6965, 7300, 7960, 8176, 9950, 10220, 11144, 11680, 12775, 13930, 14527, 14600, 15920, 16352, 19900, 20440, 22288, 25550, 27860, 29054, 29200, 31840, 34825, 39800, 40880, 44576, 51100, 55720, 58108, 58400, 69650, 72635, 79600, 81760, 101689, 102200, 111440, 116216, 139300, 145270, 159200, 203378, 204400, 222880, 232432, 278600, 290540, 363175, 406756, 408800, 464864, 508445, 557200, 581080, 726350, 813512, 1016890, 1114400, 1162160, 1452700, 1627024, 2033780, 2324320, 2542225, 2905400, 3254048, 4067560, 5084450, 5810800, 8135120, 10168900, 11621600, 16270240, 20337800, 40675600, 81351200]

約数ペア:

[(1, 81351200), (2, 40675600), (4, 20337800), (5, 16270240), (7, 11621600), (8, 10168900), (10, 8135120), (14, 5810800), (16, 5084450), (20, 4067560), (25, 3254048), (28, 2905400), (32, 2542225), (35, 2324320), (40, 2033780), (50, 1627024), (56, 1452700), (70, 1162160), (73, 1114400), (80, 1016890), (100, 813512), (112, 726350), (140, 581080), (146, 557200), (160, 508445), (175, 464864), (199, 408800), (200, 406756), (224, 363175), (280, 290540), (292, 278600), (350, 232432), (365, 222880), (398, 204400), (400, 203378), (511, 159200), (560, 145270), (584, 139300), (700, 116216), (730, 111440), (796, 102200), (800, 101689), (995, 81760), (1022, 79600), (1120, 72635), (1168, 69650), (1393, 58400), (1400, 58108), (1460, 55720), (1592, 51100), (1825, 44576), (1990, 40880), (2044, 39800), (2336, 34825), (2555, 31840), (2786, 29200), (2800, 29054), (2920, 27860), (3184, 25550), (3650, 22288), (3980, 20440), (4088, 19900), (4975, 16352), (5110, 15920), (5572, 14600), (5600, 14527), (5840, 13930), (6368, 12775), (6965, 11680), (7300, 11144), (7960, 10220), (8176, 9950)]