128578128

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1489}}^1$

素因数の和:1764

約数の個数: 80

約数和(自身を含む): 381344640

約数和(自身を除く): 252766512

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 257, 336, 514, 771, 1028, 1489, 1542, 1799, 2056, 2978, 3084, 3598, 4112, 4467, 5397, 5956, 6168, 7196, 8934, 10423, 10794, 11912, 12336, 14392, 17868, 20846, 21588, 23824, 28784, 31269, 35736, 41692, 43176, 62538, 71472, 83384, 86352, 125076, 166768, 250152, 382673, 500304, 765346, 1148019, 1530692, 2296038, 2678711, 3061384, 4592076, 5357422, 6122768, 8036133, 9184152, 10714844, 16072266, 18368304, 21429688, 32144532, 42859376, 64289064, 128578128]

約数ペア:

[(1, 128578128), (2, 64289064), (3, 42859376), (4, 32144532), (6, 21429688), (7, 18368304), (8, 16072266), (12, 10714844), (14, 9184152), (16, 8036133), (21, 6122768), (24, 5357422), (28, 4592076), (42, 3061384), (48, 2678711), (56, 2296038), (84, 1530692), (112, 1148019), (168, 765346), (257, 500304), (336, 382673), (514, 250152), (771, 166768), (1028, 125076), (1489, 86352), (1542, 83384), (1799, 71472), (2056, 62538), (2978, 43176), (3084, 41692), (3598, 35736), (4112, 31269), (4467, 28784), (5397, 23824), (5956, 21588), (6168, 20846), (7196, 17868), (8934, 14392), (10423, 12336), (10794, 11912)]