1239194890

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1\times {\mathrm{2423}}^1$

素因数の和:2886

約数の個数: 32

約数和(自身を含む): 2251411200

約数和(自身を除く): 1012216310

約数列:

[1, 2, 5, 10, 199, 257, 398, 514, 995, 1285, 1990, 2423, 2570, 4846, 12115, 24230, 51143, 102286, 255715, 482177, 511430, 622711, 964354, 1245422, 2410885, 3113555, 4821770, 6227110, 123919489, 247838978, 619597445, 1239194890]

約数ペア:

[(1, 1239194890), (2, 619597445), (5, 247838978), (10, 123919489), (199, 6227110), (257, 4821770), (398, 3113555), (514, 2410885), (995, 1245422), (1285, 964354), (1990, 622711), (2423, 511430), (2570, 482177), (4846, 255715), (12115, 102286), (24230, 51143)]