991208240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{5051}}^1$

素因数の和:5298

約数の個数: 80

約数和(自身を含む): 2525838336

約数和(自身を除く): 1534630096

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 223, 440, 446, 880, 892, 1115, 1784, 2230, 2453, 3568, 4460, 4906, 5051, 8920, 9812, 10102, 12265, 17840, 19624, 20204, 24530, 25255, 39248, 40408, 49060, 50510, 55561, 80816, 98120, 101020, 111122, 196240, 202040, 222244, 277805, 404080, 444488, 555610, 888976, 1111220, 1126373, 2222440, 2252746, 4444880, 4505492, 5631865, 9010984, 11263730, 12390103, 18021968, 22527460, 24780206, 45054920, 49560412, 61950515, 90109840, 99120824, 123901030, 198241648, 247802060, 495604120, 991208240]

約数ペア:

[(1, 991208240), (2, 495604120), (4, 247802060), (5, 198241648), (8, 123901030), (10, 99120824), (11, 90109840), (16, 61950515), (20, 49560412), (22, 45054920), (40, 24780206), (44, 22527460), (55, 18021968), (80, 12390103), (88, 11263730), (110, 9010984), (176, 5631865), (220, 4505492), (223, 4444880), (440, 2252746), (446, 2222440), (880, 1126373), (892, 1111220), (1115, 888976), (1784, 555610), (2230, 444488), (2453, 404080), (3568, 277805), (4460, 222244), (4906, 202040), (5051, 196240), (8920, 111122), (9812, 101020), (10102, 98120), (12265, 80816), (17840, 55561), (19624, 50510), (20204, 49060), (24530, 40408), (25255, 39248)]