28193395

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 36471600

約数和(自身を除く): 8278205

約数列:

[1, 5, 17, 85, 109, 179, 289, 545, 895, 1445, 1853, 3043, 9265, 15215, 19511, 31501, 51731, 97555, 157505, 258655, 331687, 1658435, 5638679, 28193395]

約数ペア:

[(1, 28193395), (5, 5638679), (17, 1658435), (85, 331687), (109, 258655), (179, 157505), (289, 97555), (545, 51731), (895, 31501), (1445, 19511), (1853, 15215), (3043, 9265)]