131808280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{106297}}^1$

素因数の和:106339

約数の個数: 32

約数和(自身を含む): 306138240

約数和(自身を除く): 174329960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 106297, 212594, 425188, 531485, 850376, 1062970, 2125940, 3295207, 4251880, 6590414, 13180828, 16476035, 26361656, 32952070, 65904140, 131808280]

約数ペア:

[(1, 131808280), (2, 65904140), (4, 32952070), (5, 26361656), (8, 16476035), (10, 13180828), (20, 6590414), (31, 4251880), (40, 3295207), (62, 2125940), (124, 1062970), (155, 850376), (248, 531485), (310, 425188), (620, 212594), (1240, 106297)]