145696280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117497}}^1$

素因数の和:117539

約数の個数: 32

約数和(自身を含む): 338394240

約数和(自身を除く): 192697960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 117497, 234994, 469988, 587485, 939976, 1174970, 2349940, 3642407, 4699880, 7284814, 14569628, 18212035, 29139256, 36424070, 72848140, 145696280]

約数ペア:

[(1, 145696280), (2, 72848140), (4, 36424070), (5, 29139256), (8, 18212035), (10, 14569628), (20, 7284814), (31, 4699880), (40, 3642407), (62, 2349940), (124, 1174970), (155, 939976), (248, 587485), (310, 469988), (620, 234994), (1240, 117497)]