645424

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 1406160

約数和(自身を除く): 760736

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 107, 116, 208, 214, 232, 377, 428, 464, 754, 856, 1391, 1508, 1712, 2782, 3016, 3103, 5564, 6032, 6206, 11128, 12412, 22256, 24824, 40339, 49648, 80678, 161356, 322712, 645424]

約数ペア:

[(1, 645424), (2, 322712), (4, 161356), (8, 80678), (13, 49648), (16, 40339), (26, 24824), (29, 22256), (52, 12412), (58, 11128), (104, 6206), (107, 6032), (116, 5564), (208, 3103), (214, 3016), (232, 2782), (377, 1712), (428, 1508), (464, 1391), (754, 856)]