389260720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131507}}^1$

素因数の和:131557

約数の個数: 40

約数和(自身を含む): 929498544

約数和(自身を除く): 540237824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 131507, 263014, 526028, 657535, 1052056, 1315070, 2104112, 2630140, 4865759, 5260280, 9731518, 10520560, 19463036, 24328795, 38926072, 48657590, 77852144, 97315180, 194630360, 389260720]

約数ペア:

[(1, 389260720), (2, 194630360), (4, 97315180), (5, 77852144), (8, 48657590), (10, 38926072), (16, 24328795), (20, 19463036), (37, 10520560), (40, 9731518), (74, 5260280), (80, 4865759), (148, 2630140), (185, 2104112), (296, 1315070), (370, 1052056), (592, 657535), (740, 526028), (1480, 263014), (2960, 131507)]