13945000

素因数分解:

$2^3\times 5^4\times {\mathrm{2789}}^1$

素因数の和:2815

約数の個数: 40

約数和(自身を含む): 32684850

約数和(自身を除く): 18739850

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 2789, 5000, 5578, 11156, 13945, 22312, 27890, 55780, 69725, 111560, 139450, 278900, 348625, 557800, 697250, 1394500, 1743125, 2789000, 3486250, 6972500, 13945000]

約数ペア:

[(1, 13945000), (2, 6972500), (4, 3486250), (5, 2789000), (8, 1743125), (10, 1394500), (20, 697250), (25, 557800), (40, 348625), (50, 278900), (100, 139450), (125, 111560), (200, 69725), (250, 55780), (500, 27890), (625, 22312), (1000, 13945), (1250, 11156), (2500, 5578), (2789, 5000)]