6428800

素因数分解:

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

素因数の和:79

約数の個数: 144

約数和(自身を含む): 18924570

約数和(自身を除く): 12495770

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 41, 49, 50, 56, 64, 70, 80, 82, 98, 100, 112, 128, 140, 160, 164, 175, 196, 200, 205, 224, 245, 280, 287, 320, 328, 350, 392, 400, 410, 448, 490, 560, 574, 640, 656, 700, 784, 800, 820, 896, 980, 1025, 1120, 1148, 1225, 1312, 1400, 1435, 1568, 1600, 1640, 1960, 2009, 2050, 2240, 2296, 2450, 2624, 2800, 2870, 3136, 3200, 3280, 3920, 4018, 4100, 4480, 4592, 4900, 5248, 5600, 5740, 6272, 6560, 7175, 7840, 8036, 8200, 9184, 9800, 10045, 11200, 11480, 13120, 14350, 15680, 16072, 16400, 18368, 19600, 20090, 22400, 22960, 26240, 28700, 31360, 32144, 32800, 36736, 39200, 40180, 45920, 50225, 57400, 64288, 65600, 78400, 80360, 91840, 100450, 114800, 128576, 131200, 156800, 160720, 183680, 200900, 229600, 257152, 321440, 401800, 459200, 642880, 803600, 918400, 1285760, 1607200, 3214400, 6428800]

約数ペア:

[(1, 6428800), (2, 3214400), (4, 1607200), (5, 1285760), (7, 918400), (8, 803600), (10, 642880), (14, 459200), (16, 401800), (20, 321440), (25, 257152), (28, 229600), (32, 200900), (35, 183680), (40, 160720), (41, 156800), (49, 131200), (50, 128576), (56, 114800), (64, 100450), (70, 91840), (80, 80360), (82, 78400), (98, 65600), (100, 64288), (112, 57400), (128, 50225), (140, 45920), (160, 40180), (164, 39200), (175, 36736), (196, 32800), (200, 32144), (205, 31360), (224, 28700), (245, 26240), (280, 22960), (287, 22400), (320, 20090), (328, 19600), (350, 18368), (392, 16400), (400, 16072), (410, 15680), (448, 14350), (490, 13120), (560, 11480), (574, 11200), (640, 10045), (656, 9800), (700, 9184), (784, 8200), (800, 8036), (820, 7840), (896, 7175), (980, 6560), (1025, 6272), (1120, 5740), (1148, 5600), (1225, 5248), (1312, 4900), (1400, 4592), (1435, 4480), (1568, 4100), (1600, 4018), (1640, 3920), (1960, 3280), (2009, 3200), (2050, 3136), (2240, 2870), (2296, 2800), (2450, 2624)]