86690140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{254971}}^1$

素因数の和:254997

約数の個数: 24

約数和(自身を含む): 192758832

約数和(自身を除く): 106068692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 254971, 509942, 1019884, 1274855, 2549710, 4334507, 5099420, 8669014, 17338028, 21672535, 43345070, 86690140]

約数ペア:

[(1, 86690140), (2, 43345070), (4, 21672535), (5, 17338028), (10, 8669014), (17, 5099420), (20, 4334507), (34, 2549710), (68, 1274855), (85, 1019884), (170, 509942), (340, 254971)]