8131480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 21176640

約数和(自身を除く): 13045160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 257, 280, 452, 514, 565, 791, 904, 1028, 1130, 1285, 1582, 1799, 2056, 2260, 2570, 3164, 3598, 3955, 4520, 5140, 6328, 7196, 7910, 8995, 10280, 14392, 15820, 17990, 29041, 31640, 35980, 58082, 71960, 116164, 145205, 203287, 232328, 290410, 406574, 580820, 813148, 1016435, 1161640, 1626296, 2032870, 4065740, 8131480]

約数ペア:

[(1, 8131480), (2, 4065740), (4, 2032870), (5, 1626296), (7, 1161640), (8, 1016435), (10, 813148), (14, 580820), (20, 406574), (28, 290410), (35, 232328), (40, 203287), (56, 145205), (70, 116164), (113, 71960), (140, 58082), (226, 35980), (257, 31640), (280, 29041), (452, 17990), (514, 15820), (565, 14392), (791, 10280), (904, 8995), (1028, 7910), (1130, 7196), (1285, 6328), (1582, 5140), (1799, 4520), (2056, 3955), (2260, 3598), (2570, 3164)]