256030005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{221671}}^1$

素因数の和:221697

約数の個数: 32

約数和(自身を含む): 510732288

約数和(自身を除く): 254702283

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 221671, 665013, 1108355, 1551697, 2438381, 3325065, 4655091, 7315143, 7758485, 12191905, 17068667, 23275455, 36575715, 51206001, 85343335, 256030005]

約数ペア:

[(1, 256030005), (3, 85343335), (5, 51206001), (7, 36575715), (11, 23275455), (15, 17068667), (21, 12191905), (33, 7758485), (35, 7315143), (55, 4655091), (77, 3325065), (105, 2438381), (165, 1551697), (231, 1108355), (385, 665013), (1155, 221671)]