8209520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 21962880

約数和(自身を除く): 13753360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 491, 760, 836, 880, 982, 1045, 1520, 1672, 1964, 2090, 2455, 3344, 3928, 4180, 4910, 5401, 7856, 8360, 9329, 9820, 10802, 16720, 18658, 19640, 21604, 27005, 37316, 39280, 43208, 46645, 54010, 74632, 86416, 93290, 102619, 108020, 149264, 186580, 205238, 216040, 373160, 410476, 432080, 513095, 746320, 820952, 1026190, 1641904, 2052380, 4104760, 8209520]

約数ペア:

[(1, 8209520), (2, 4104760), (4, 2052380), (5, 1641904), (8, 1026190), (10, 820952), (11, 746320), (16, 513095), (19, 432080), (20, 410476), (22, 373160), (38, 216040), (40, 205238), (44, 186580), (55, 149264), (76, 108020), (80, 102619), (88, 93290), (95, 86416), (110, 74632), (152, 54010), (176, 46645), (190, 43208), (209, 39280), (220, 37316), (304, 27005), (380, 21604), (418, 19640), (440, 18658), (491, 16720), (760, 10802), (836, 9820), (880, 9329), (982, 8360), (1045, 7856), (1520, 5401), (1672, 4910), (1964, 4180), (2090, 3928), (2455, 3344)]