19800622

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 12858578

約数列:

[1, 2, 19, 38, 41, 71, 82, 142, 179, 358, 779, 1349, 1558, 2698, 2911, 3401, 5822, 6802, 7339, 12709, 14678, 25418, 55309, 110618, 139441, 241471, 278882, 482942, 521069, 1042138, 9900311, 19800622]

約数ペア:

[(1, 19800622), (2, 9900311), (19, 1042138), (38, 521069), (41, 482942), (71, 278882), (82, 241471), (142, 139441), (179, 110618), (358, 55309), (779, 25418), (1349, 14678), (1558, 12709), (2698, 7339), (2911, 6802), (3401, 5822)]