291218590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{11257}}^1$

素因数の和:11476

約数の個数: 32

約数和(自身を含む): 567403200

約数和(自身を除く): 276184610

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 995, 1990, 2587, 5174, 11257, 12935, 22514, 25870, 56285, 112570, 146341, 292682, 731705, 1463410, 2240143, 4480286, 11200715, 22401430, 29121859, 58243718, 145609295, 291218590]

約数ペア:

[(1, 291218590), (2, 145609295), (5, 58243718), (10, 29121859), (13, 22401430), (26, 11200715), (65, 4480286), (130, 2240143), (199, 1463410), (398, 731705), (995, 292682), (1990, 146341), (2587, 112570), (5174, 56285), (11257, 25870), (12935, 22514)]