28678545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{503}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 57238272

約数和(自身を除く): 28559727

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 181, 315, 503, 543, 905, 1267, 1509, 1629, 2515, 2715, 3521, 3801, 4527, 6335, 7545, 8145, 10563, 11403, 17605, 19005, 22635, 31689, 52815, 57015, 91043, 158445, 273129, 455215, 637301, 819387, 1365645, 1911903, 3186505, 4096935, 5735709, 9559515, 28678545]

約数ペア:

[(1, 28678545), (3, 9559515), (5, 5735709), (7, 4096935), (9, 3186505), (15, 1911903), (21, 1365645), (35, 819387), (45, 637301), (63, 455215), (105, 273129), (181, 158445), (315, 91043), (503, 57015), (543, 52815), (905, 31689), (1267, 22635), (1509, 19005), (1629, 17605), (2515, 11403), (2715, 10563), (3521, 8145), (3801, 7545), (4527, 6335)]