208628505

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{272717}}^1$

素因数の和:272745

約数の個数: 24

約数和(自身を含む): 382896072

約数和(自身を除く): 174267567

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 272717, 818151, 1363585, 2454453, 4090755, 4636189, 12272265, 13908567, 23180945, 41725701, 69542835, 208628505]

約数ペア:

[(1, 208628505), (3, 69542835), (5, 41725701), (9, 23180945), (15, 13908567), (17, 12272265), (45, 4636189), (51, 4090755), (85, 2454453), (153, 1363585), (255, 818151), (765, 272717)]