399351680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6857}}^1$

素因数の和:6896

約数の個数: 128

約数和(自身を含む): 1175186880

約数和(自身を除く): 775835200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1456, 1664, 1820, 2080, 2240, 2912, 3640, 4160, 4480, 5824, 6857, 7280, 8320, 11648, 13714, 14560, 27428, 29120, 34285, 47999, 54856, 58240, 68570, 89141, 95998, 109712, 137140, 178282, 191996, 219424, 239995, 274280, 356564, 383992, 438848, 445705, 479990, 548560, 623987, 713128, 767984, 877696, 891410, 959980, 1097120, 1247974, 1426256, 1535968, 1782820, 1919960, 2194240, 2495948, 2852512, 3071936, 3119935, 3565640, 3839920, 4388480, 4991896, 5705024, 6143872, 6239870, 7131280, 7679840, 9983792, 11410048, 12479740, 14262560, 15359680, 19967584, 24959480, 28525120, 30719360, 39935168, 49918960, 57050240, 79870336, 99837920, 199675840, 399351680]

約数ペア:

[(1, 399351680), (2, 199675840), (4, 99837920), (5, 79870336), (7, 57050240), (8, 49918960), (10, 39935168), (13, 30719360), (14, 28525120), (16, 24959480), (20, 19967584), (26, 15359680), (28, 14262560), (32, 12479740), (35, 11410048), (40, 9983792), (52, 7679840), (56, 7131280), (64, 6239870), (65, 6143872), (70, 5705024), (80, 4991896), (91, 4388480), (104, 3839920), (112, 3565640), (128, 3119935), (130, 3071936), (140, 2852512), (160, 2495948), (182, 2194240), (208, 1919960), (224, 1782820), (260, 1535968), (280, 1426256), (320, 1247974), (364, 1097120), (416, 959980), (448, 891410), (455, 877696), (520, 767984), (560, 713128), (640, 623987), (728, 548560), (832, 479990), (896, 445705), (910, 438848), (1040, 383992), (1120, 356564), (1456, 274280), (1664, 239995), (1820, 219424), (2080, 191996), (2240, 178282), (2912, 137140), (3640, 109712), (4160, 95998), (4480, 89141), (5824, 68570), (6857, 58240), (7280, 54856), (8320, 47999), (11648, 34285), (13714, 29120), (14560, 27428)]