28751165

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 37201032

約数和(自身を除く): 8449867

約数列:

[1, 5, 17, 85, 101, 197, 289, 505, 985, 1445, 1717, 3349, 8585, 16745, 19897, 29189, 56933, 99485, 145945, 284665, 338249, 1691245, 5750233, 28751165]

約数ペア:

[(1, 28751165), (5, 5750233), (17, 1691245), (85, 338249), (101, 284665), (197, 145945), (289, 99485), (505, 56933), (985, 29189), (1445, 19897), (1717, 16745), (3349, 8585)]