289288280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233297}}^1$

素因数の和:233339

約数の個数: 32

約数和(自身を含む): 671898240

約数和(自身を除く): 382609960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 233297, 466594, 933188, 1166485, 1866376, 2332970, 4665940, 7232207, 9331880, 14464414, 28928828, 36161035, 57857656, 72322070, 144644140, 289288280]

約数ペア:

[(1, 289288280), (2, 144644140), (4, 72322070), (5, 57857656), (8, 36161035), (10, 28928828), (20, 14464414), (31, 9331880), (40, 7232207), (62, 4665940), (124, 2332970), (155, 1866376), (248, 1166485), (310, 933188), (620, 466594), (1240, 233297)]