209212280

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{23041}}^1$

素因数の和:23279

約数の個数: 32

約数和(自身を含む): 472821840

約数和(自身を除く): 263609560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 9080, 23041, 46082, 92164, 115205, 184328, 230410, 460820, 921640, 5230307, 10460614, 20921228, 26151535, 41842456, 52303070, 104606140, 209212280]

約数ペア:

[(1, 209212280), (2, 104606140), (4, 52303070), (5, 41842456), (8, 26151535), (10, 20921228), (20, 10460614), (40, 5230307), (227, 921640), (454, 460820), (908, 230410), (1135, 184328), (1816, 115205), (2270, 92164), (4540, 46082), (9080, 23041)]