1380400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:71

約数の個数: 120

約数和(自身を含む): 4151520

約数和(自身を除く): 2771120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 29, 34, 35, 40, 50, 56, 58, 68, 70, 80, 85, 100, 112, 116, 119, 136, 140, 145, 170, 175, 200, 203, 232, 238, 272, 280, 290, 340, 350, 400, 406, 425, 464, 476, 493, 560, 580, 595, 680, 700, 725, 812, 850, 952, 986, 1015, 1160, 1190, 1360, 1400, 1450, 1624, 1700, 1904, 1972, 2030, 2320, 2380, 2465, 2800, 2900, 2975, 3248, 3400, 3451, 3944, 4060, 4760, 4930, 5075, 5800, 5950, 6800, 6902, 7888, 8120, 9520, 9860, 10150, 11600, 11900, 12325, 13804, 16240, 17255, 19720, 20300, 23800, 24650, 27608, 34510, 39440, 40600, 47600, 49300, 55216, 69020, 81200, 86275, 98600, 138040, 172550, 197200, 276080, 345100, 690200, 1380400]

約数ペア:

[(1, 1380400), (2, 690200), (4, 345100), (5, 276080), (7, 197200), (8, 172550), (10, 138040), (14, 98600), (16, 86275), (17, 81200), (20, 69020), (25, 55216), (28, 49300), (29, 47600), (34, 40600), (35, 39440), (40, 34510), (50, 27608), (56, 24650), (58, 23800), (68, 20300), (70, 19720), (80, 17255), (85, 16240), (100, 13804), (112, 12325), (116, 11900), (119, 11600), (136, 10150), (140, 9860), (145, 9520), (170, 8120), (175, 7888), (200, 6902), (203, 6800), (232, 5950), (238, 5800), (272, 5075), (280, 4930), (290, 4760), (340, 4060), (350, 3944), (400, 3451), (406, 3400), (425, 3248), (464, 2975), (476, 2900), (493, 2800), (560, 2465), (580, 2380), (595, 2320), (680, 2030), (700, 1972), (725, 1904), (812, 1700), (850, 1624), (952, 1450), (986, 1400), (1015, 1360), (1160, 1190)]