397156916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{2389}}^1$

素因数の和:2568

約数の個数: 48

約数和(自身を含む): 786979200

約数和(自身を除く): 389822284

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 139, 278, 299, 556, 598, 1196, 1807, 2389, 3197, 3614, 4778, 6394, 7228, 9556, 12788, 31057, 41561, 54947, 62114, 83122, 109894, 124228, 166244, 219788, 332071, 664142, 714311, 1328284, 1428622, 2857244, 4316923, 7637633, 8633846, 15275266, 17267692, 30550532, 99289229, 198578458, 397156916]

約数ペア:

[(1, 397156916), (2, 198578458), (4, 99289229), (13, 30550532), (23, 17267692), (26, 15275266), (46, 8633846), (52, 7637633), (92, 4316923), (139, 2857244), (278, 1428622), (299, 1328284), (556, 714311), (598, 664142), (1196, 332071), (1807, 219788), (2389, 166244), (3197, 124228), (3614, 109894), (4778, 83122), (6394, 62114), (7228, 54947), (9556, 41561), (12788, 31057)]