661386984

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{888961}}^1$

素因数の和:889001

約数の個数: 32

約数和(自身を含む): 1706807040

約数和(自身を除く): 1045420056

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744, 888961, 1777922, 2666883, 3555844, 5333766, 7111688, 10667532, 21335064, 27557791, 55115582, 82673373, 110231164, 165346746, 220462328, 330693492, 661386984]

約数ペア:

[(1, 661386984), (2, 330693492), (3, 220462328), (4, 165346746), (6, 110231164), (8, 82673373), (12, 55115582), (24, 27557791), (31, 21335064), (62, 10667532), (93, 7111688), (124, 5333766), (186, 3555844), (248, 2666883), (372, 1777922), (744, 888961)]