1285332440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{19207}}^1$

素因数の和:19464

約数の個数: 64

約数和(自身を含む): 3319142400

約数和(自身を除く): 2033809960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 478, 956, 1195, 1673, 1912, 2390, 3346, 4780, 6692, 8365, 9560, 13384, 16730, 19207, 33460, 38414, 66920, 76828, 96035, 134449, 153656, 192070, 268898, 384140, 537796, 672245, 768280, 1075592, 1344490, 2688980, 4590473, 5377960, 9180946, 18361892, 22952365, 32133311, 36723784, 45904730, 64266622, 91809460, 128533244, 160666555, 183618920, 257066488, 321333110, 642666220, 1285332440]

約数ペア:

[(1, 1285332440), (2, 642666220), (4, 321333110), (5, 257066488), (7, 183618920), (8, 160666555), (10, 128533244), (14, 91809460), (20, 64266622), (28, 45904730), (35, 36723784), (40, 32133311), (56, 22952365), (70, 18361892), (140, 9180946), (239, 5377960), (280, 4590473), (478, 2688980), (956, 1344490), (1195, 1075592), (1673, 768280), (1912, 672245), (2390, 537796), (3346, 384140), (4780, 268898), (6692, 192070), (8365, 153656), (9560, 134449), (13384, 96035), (16730, 76828), (19207, 66920), (33460, 38414)]