81695775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2551}}^1$

素因数の和:2632

約数の個数: 48

約数和(自身を含む): 156958208

約数和(自身を除く): 75262433

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 61, 75, 105, 175, 183, 305, 427, 525, 915, 1281, 1525, 2135, 2551, 4575, 6405, 7653, 10675, 12755, 17857, 32025, 38265, 53571, 63775, 89285, 155611, 191325, 267855, 446425, 466833, 778055, 1089277, 1339275, 2334165, 3267831, 3890275, 5446385, 11670825, 16339155, 27231925, 81695775]

約数ペア:

[(1, 81695775), (3, 27231925), (5, 16339155), (7, 11670825), (15, 5446385), (21, 3890275), (25, 3267831), (35, 2334165), (61, 1339275), (75, 1089277), (105, 778055), (175, 466833), (183, 446425), (305, 267855), (427, 191325), (525, 155611), (915, 89285), (1281, 63775), (1525, 53571), (2135, 38265), (2551, 32025), (4575, 17857), (6405, 12755), (7653, 10675)]