1215890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:266

約数の個数: 32

約数和(自身を含む): 2419200

約数和(自身を除く): 1203310

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 199, 235, 398, 470, 611, 995, 1222, 1990, 2587, 3055, 5174, 6110, 9353, 12935, 18706, 25870, 46765, 93530, 121589, 243178, 607945, 1215890]

約数ペア:

[(1, 1215890), (2, 607945), (5, 243178), (10, 121589), (13, 93530), (26, 46765), (47, 25870), (65, 18706), (94, 12935), (130, 9353), (199, 6110), (235, 5174), (398, 3055), (470, 2587), (611, 1990), (995, 1222)]