256064780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{3907}}^1$

素因数の和:4058

約数の個数: 48

約数和(自身を含む): 561345120

約数和(自身を除く): 305280340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 452, 565, 580, 1130, 2260, 3277, 3907, 6554, 7814, 13108, 15628, 16385, 19535, 32770, 39070, 65540, 78140, 113303, 226606, 441491, 453212, 566515, 882982, 1133030, 1765964, 2207455, 2266060, 4414910, 8829820, 12803239, 25606478, 51212956, 64016195, 128032390, 256064780]

約数ペア:

[(1, 256064780), (2, 128032390), (4, 64016195), (5, 51212956), (10, 25606478), (20, 12803239), (29, 8829820), (58, 4414910), (113, 2266060), (116, 2207455), (145, 1765964), (226, 1133030), (290, 882982), (452, 566515), (565, 453212), (580, 441491), (1130, 226606), (2260, 113303), (3277, 78140), (3907, 65540), (6554, 39070), (7814, 32770), (13108, 19535), (15628, 16385)]