66638750

素因数分解:

$2^1\times 5^4\times {\mathrm{89}}^1\times {\mathrm{599}}^1$

素因数の和:710

約数の個数: 40

約数和(自身を含む): 126522000

約数和(自身を除く): 59883250

約数列:

[1, 2, 5, 10, 25, 50, 89, 125, 178, 250, 445, 599, 625, 890, 1198, 1250, 2225, 2995, 4450, 5990, 11125, 14975, 22250, 29950, 53311, 55625, 74875, 106622, 111250, 149750, 266555, 374375, 533110, 748750, 1332775, 2665550, 6663875, 13327750, 33319375, 66638750]

約数ペア:

[(1, 66638750), (2, 33319375), (5, 13327750), (10, 6663875), (25, 2665550), (50, 1332775), (89, 748750), (125, 533110), (178, 374375), (250, 266555), (445, 149750), (599, 111250), (625, 106622), (890, 74875), (1198, 55625), (1250, 53311), (2225, 29950), (2995, 22250), (4450, 14975), (5990, 11125)]