84874280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68447}}^1$

素因数の和:68489

約数の個数: 32

約数和(自身を含む): 197130240

約数和(自身を除く): 112255960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 68447, 136894, 273788, 342235, 547576, 684470, 1368940, 2121857, 2737880, 4243714, 8487428, 10609285, 16974856, 21218570, 42437140, 84874280]

約数ペア:

[(1, 84874280), (2, 42437140), (4, 21218570), (5, 16974856), (8, 10609285), (10, 8487428), (20, 4243714), (31, 2737880), (40, 2121857), (62, 1368940), (124, 684470), (155, 547576), (248, 342235), (310, 273788), (620, 136894), (1240, 68447)]