249546280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{201247}}^1$

素因数の和:201289

約数の個数: 32

約数和(自身を含む): 579594240

約数和(自身を除く): 330047960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 201247, 402494, 804988, 1006235, 1609976, 2012470, 4024940, 6238657, 8049880, 12477314, 24954628, 31193285, 49909256, 62386570, 124773140, 249546280]

約数ペア:

[(1, 249546280), (2, 124773140), (4, 62386570), (5, 49909256), (8, 31193285), (10, 24954628), (20, 12477314), (31, 8049880), (40, 6238657), (62, 4024940), (124, 2012470), (155, 1609976), (248, 1006235), (310, 804988), (620, 402494), (1240, 201247)]