51378705

素因数分解:

$3^5\times 5^1\times 7^2\times {\mathrm{863}}^1$

素因数の和:897

約数の個数: 72

約数和(自身を含む): 107557632

約数和(自身を除く): 56178927

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 243, 245, 315, 405, 441, 567, 735, 863, 945, 1215, 1323, 1701, 2205, 2589, 2835, 3969, 4315, 6041, 6615, 7767, 8505, 11907, 12945, 18123, 19845, 23301, 30205, 38835, 42287, 54369, 59535, 69903, 90615, 116505, 126861, 163107, 209709, 211435, 271845, 349515, 380583, 489321, 634305, 815535, 1048545, 1141749, 1467963, 1902915, 2446605, 3425247, 5708745, 7339815, 10275741, 17126235, 51378705]

約数ペア:

[(1, 51378705), (3, 17126235), (5, 10275741), (7, 7339815), (9, 5708745), (15, 3425247), (21, 2446605), (27, 1902915), (35, 1467963), (45, 1141749), (49, 1048545), (63, 815535), (81, 634305), (105, 489321), (135, 380583), (147, 349515), (189, 271845), (243, 211435), (245, 209709), (315, 163107), (405, 126861), (441, 116505), (567, 90615), (735, 69903), (863, 59535), (945, 54369), (1215, 42287), (1323, 38835), (1701, 30205), (2205, 23301), (2589, 19845), (2835, 18123), (3969, 12945), (4315, 11907), (6041, 8505), (6615, 7767)]