28764855

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 59520000

約数和(自身を除く): 30755145

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 61, 63, 105, 135, 183, 189, 305, 315, 427, 499, 549, 915, 945, 1281, 1497, 1647, 2135, 2495, 2745, 3493, 3843, 4491, 6405, 7485, 8235, 10479, 11529, 13473, 17465, 19215, 22455, 30439, 31437, 52395, 57645, 67365, 91317, 94311, 152195, 157185, 213073, 273951, 456585, 471555, 639219, 821853, 1065365, 1369755, 1917657, 3196095, 4109265, 5752971, 9588285, 28764855]

約数ペア:

[(1, 28764855), (3, 9588285), (5, 5752971), (7, 4109265), (9, 3196095), (15, 1917657), (21, 1369755), (27, 1065365), (35, 821853), (45, 639219), (61, 471555), (63, 456585), (105, 273951), (135, 213073), (183, 157185), (189, 152195), (305, 94311), (315, 91317), (427, 67365), (499, 57645), (549, 52395), (915, 31437), (945, 30439), (1281, 22455), (1497, 19215), (1647, 17465), (2135, 13473), (2495, 11529), (2745, 10479), (3493, 8235), (3843, 7485), (4491, 6405)]