890679986

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{373}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 1654456320

約数和(自身を除く): 763776334

約数列:

[1, 2, 7, 14, 19, 38, 47, 94, 133, 191, 266, 329, 373, 382, 658, 746, 893, 1337, 1786, 2611, 2674, 3629, 5222, 6251, 7087, 7258, 8977, 12502, 14174, 17531, 17954, 25403, 35062, 49609, 50806, 62839, 71243, 99218, 122717, 125678, 142486, 170563, 245434, 333089, 341126, 498701, 666178, 997402, 1193941, 1353617, 2331623, 2387882, 2707234, 3348421, 4663246, 6696842, 9475319, 18950638, 23438947, 46877894, 63619999, 127239998, 445339993, 890679986]

約数ペア:

[(1, 890679986), (2, 445339993), (7, 127239998), (14, 63619999), (19, 46877894), (38, 23438947), (47, 18950638), (94, 9475319), (133, 6696842), (191, 4663246), (266, 3348421), (329, 2707234), (373, 2387882), (382, 2331623), (658, 1353617), (746, 1193941), (893, 997402), (1337, 666178), (1786, 498701), (2611, 341126), (2674, 333089), (3629, 245434), (5222, 170563), (6251, 142486), (7087, 125678), (7258, 122717), (8977, 99218), (12502, 71243), (14174, 62839), (17531, 50806), (17954, 49609), (25403, 35062)]