639342884

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{10501}}^1$

素因数の和:11027

約数の個数: 24

約数和(自身を含む): 1157404416

約数和(自身を除く): 518061532

約数列:

[1, 2, 4, 31, 62, 124, 491, 982, 1964, 10501, 15221, 21002, 30442, 42004, 60884, 325531, 651062, 1302124, 5155991, 10311982, 20623964, 159835721, 319671442, 639342884]

約数ペア:

[(1, 639342884), (2, 319671442), (4, 159835721), (31, 20623964), (62, 10311982), (124, 5155991), (491, 1302124), (982, 651062), (1964, 325531), (10501, 60884), (15221, 42004), (21002, 30442)]