207748520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2887}}^1$

素因数の和:3162

約数の個数: 64

約数和(自身を含む): 536474880

約数和(自身を除く): 328726360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1285, 1799, 2056, 2570, 2887, 3598, 5140, 5774, 7196, 8995, 10280, 11548, 14392, 14435, 17990, 20209, 23096, 28870, 35980, 40418, 57740, 71960, 80836, 101045, 115480, 161672, 202090, 404180, 741959, 808360, 1483918, 2967836, 3709795, 5193713, 5935672, 7419590, 10387426, 14839180, 20774852, 25968565, 29678360, 41549704, 51937130, 103874260, 207748520]

約数ペア:

[(1, 207748520), (2, 103874260), (4, 51937130), (5, 41549704), (7, 29678360), (8, 25968565), (10, 20774852), (14, 14839180), (20, 10387426), (28, 7419590), (35, 5935672), (40, 5193713), (56, 3709795), (70, 2967836), (140, 1483918), (257, 808360), (280, 741959), (514, 404180), (1028, 202090), (1285, 161672), (1799, 115480), (2056, 101045), (2570, 80836), (2887, 71960), (3598, 57740), (5140, 40418), (5774, 35980), (7196, 28870), (8995, 23096), (10280, 20209), (11548, 17990), (14392, 14435)]