81115408

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:356

約数の個数: 80

約数和(自身を含む): 182845440

約数和(自身を除く): 101730032

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 127, 152, 176, 191, 209, 254, 304, 382, 418, 508, 764, 836, 1016, 1397, 1528, 1672, 2032, 2101, 2413, 2794, 3056, 3344, 3629, 4202, 4826, 5588, 7258, 8404, 9652, 11176, 14516, 16808, 19304, 22352, 24257, 26543, 29032, 33616, 38608, 39919, 48514, 53086, 58064, 79838, 97028, 106172, 159676, 194056, 212344, 266827, 319352, 388112, 424688, 460883, 533654, 638704, 921766, 1067308, 1843532, 2134616, 3687064, 4269232, 5069713, 7374128, 10139426, 20278852, 40557704, 81115408]

約数ペア:

[(1, 81115408), (2, 40557704), (4, 20278852), (8, 10139426), (11, 7374128), (16, 5069713), (19, 4269232), (22, 3687064), (38, 2134616), (44, 1843532), (76, 1067308), (88, 921766), (127, 638704), (152, 533654), (176, 460883), (191, 424688), (209, 388112), (254, 319352), (304, 266827), (382, 212344), (418, 194056), (508, 159676), (764, 106172), (836, 97028), (1016, 79838), (1397, 58064), (1528, 53086), (1672, 48514), (2032, 39919), (2101, 38608), (2413, 33616), (2794, 29032), (3056, 26543), (3344, 24257), (3629, 22352), (4202, 19304), (4826, 16808), (5588, 14516), (7258, 11176), (8404, 9652)]