19860400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:239

約数の個数: 120

約数和(自身を含む): 56183904

約数和(自身を除く): 36323504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 41, 50, 56, 70, 80, 82, 100, 112, 140, 164, 173, 175, 200, 205, 280, 287, 328, 346, 350, 400, 410, 560, 574, 656, 692, 700, 820, 865, 1025, 1148, 1211, 1384, 1400, 1435, 1640, 1730, 2050, 2296, 2422, 2768, 2800, 2870, 3280, 3460, 4100, 4325, 4592, 4844, 5740, 6055, 6920, 7093, 7175, 8200, 8650, 9688, 11480, 12110, 13840, 14186, 14350, 16400, 17300, 19376, 22960, 24220, 28372, 28700, 30275, 34600, 35465, 48440, 49651, 56744, 57400, 60550, 69200, 70930, 96880, 99302, 113488, 114800, 121100, 141860, 177325, 198604, 242200, 248255, 283720, 354650, 397208, 484400, 496510, 567440, 709300, 794416, 993020, 1241275, 1418600, 1986040, 2482550, 2837200, 3972080, 4965100, 9930200, 19860400]

約数ペア:

[(1, 19860400), (2, 9930200), (4, 4965100), (5, 3972080), (7, 2837200), (8, 2482550), (10, 1986040), (14, 1418600), (16, 1241275), (20, 993020), (25, 794416), (28, 709300), (35, 567440), (40, 496510), (41, 484400), (50, 397208), (56, 354650), (70, 283720), (80, 248255), (82, 242200), (100, 198604), (112, 177325), (140, 141860), (164, 121100), (173, 114800), (175, 113488), (200, 99302), (205, 96880), (280, 70930), (287, 69200), (328, 60550), (346, 57400), (350, 56744), (400, 49651), (410, 48440), (560, 35465), (574, 34600), (656, 30275), (692, 28700), (700, 28372), (820, 24220), (865, 22960), (1025, 19376), (1148, 17300), (1211, 16400), (1384, 14350), (1400, 14186), (1435, 13840), (1640, 12110), (1730, 11480), (2050, 9688), (2296, 8650), (2422, 8200), (2768, 7175), (2800, 7093), (2870, 6920), (3280, 6055), (3460, 5740), (4100, 4844), (4325, 4592)]