19317260

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 41846112

約数和(自身を除く): 22528852

約数列:

[1, 2, 4, 5, 10, 20, 73, 101, 131, 146, 202, 262, 292, 365, 404, 505, 524, 655, 730, 1010, 1310, 1460, 2020, 2620, 7373, 9563, 13231, 14746, 19126, 26462, 29492, 36865, 38252, 47815, 52924, 66155, 73730, 95630, 132310, 147460, 191260, 264620, 965863, 1931726, 3863452, 4829315, 9658630, 19317260]

約数ペア:

[(1, 19317260), (2, 9658630), (4, 4829315), (5, 3863452), (10, 1931726), (20, 965863), (73, 264620), (101, 191260), (131, 147460), (146, 132310), (202, 95630), (262, 73730), (292, 66155), (365, 52924), (404, 47815), (505, 38252), (524, 36865), (655, 29492), (730, 26462), (1010, 19126), (1310, 14746), (1460, 13231), (2020, 9563), (2620, 7373)]