212470000

素因数分解:

$2^4\times 5^4\times {\mathrm{21247}}^1$

素因数の和:21275

約数の個数: 50

約数和(自身を含む): 514435328

約数和(自身を除く): 301965328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 21247, 42494, 84988, 106235, 169976, 212470, 339952, 424940, 531175, 849880, 1062350, 1699760, 2124700, 2655875, 4249400, 5311750, 8498800, 10623500, 13279375, 21247000, 26558750, 42494000, 53117500, 106235000, 212470000]

約数ペア:

[(1, 212470000), (2, 106235000), (4, 53117500), (5, 42494000), (8, 26558750), (10, 21247000), (16, 13279375), (20, 10623500), (25, 8498800), (40, 5311750), (50, 4249400), (80, 2655875), (100, 2124700), (125, 1699760), (200, 1062350), (250, 849880), (400, 531175), (500, 424940), (625, 339952), (1000, 212470), (1250, 169976), (2000, 106235), (2500, 84988), (5000, 42494), (10000, 21247)]