217439605

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1451}}^1$

素因数の和:1557

約数の個数: 32

約数和(自身を含む): 289795968

約数和(自身を除く): 72356363

約数列:

[1, 5, 17, 41, 43, 85, 205, 215, 697, 731, 1451, 1763, 3485, 3655, 7255, 8815, 24667, 29971, 59491, 62393, 123335, 149855, 297455, 311965, 1011347, 1060681, 2558113, 5056735, 5303405, 12790565, 43487921, 217439605]

約数ペア:

[(1, 217439605), (5, 43487921), (17, 12790565), (41, 5303405), (43, 5056735), (85, 2558113), (205, 1060681), (215, 1011347), (697, 311965), (731, 297455), (1451, 149855), (1763, 123335), (3485, 62393), (3655, 59491), (7255, 29971), (8815, 24667)]