355000

素因数分解:

$2^3\times 5^4\times {\mathrm{71}}^1$

素因数の和:97

約数の個数: 40

約数和(自身を含む): 843480

約数和(自身を除く): 488480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 125, 142, 200, 250, 284, 355, 500, 568, 625, 710, 1000, 1250, 1420, 1775, 2500, 2840, 3550, 5000, 7100, 8875, 14200, 17750, 35500, 44375, 71000, 88750, 177500, 355000]

約数ペア:

[(1, 355000), (2, 177500), (4, 88750), (5, 71000), (8, 44375), (10, 35500), (20, 17750), (25, 14200), (40, 8875), (50, 7100), (71, 5000), (100, 3550), (125, 2840), (142, 2500), (200, 1775), (250, 1420), (284, 1250), (355, 1000), (500, 710), (568, 625)]