78460280

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{8641}}^1$

素因数の和:8879

約数の個数: 32

約数和(自身を含む): 177333840

約数和(自身を除く): 98873560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 8641, 9080, 17282, 34564, 43205, 69128, 86410, 172820, 345640, 1961507, 3923014, 7846028, 9807535, 15692056, 19615070, 39230140, 78460280]

約数ペア:

[(1, 78460280), (2, 39230140), (4, 19615070), (5, 15692056), (8, 9807535), (10, 7846028), (20, 3923014), (40, 1961507), (227, 345640), (454, 172820), (908, 86410), (1135, 69128), (1816, 43205), (2270, 34564), (4540, 17282), (8641, 9080)]