31312720

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2857}}^1$

素因数の和:3007

約数の個数: 40

約数和(自身を含む): 73359144

約数和(自身を除く): 42046424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 2857, 5480, 5714, 10960, 11428, 14285, 22856, 28570, 45712, 57140, 114280, 228560, 391409, 782818, 1565636, 1957045, 3131272, 3914090, 6262544, 7828180, 15656360, 31312720]

約数ペア:

[(1, 31312720), (2, 15656360), (4, 7828180), (5, 6262544), (8, 3914090), (10, 3131272), (16, 1957045), (20, 1565636), (40, 782818), (80, 391409), (137, 228560), (274, 114280), (548, 57140), (685, 45712), (1096, 28570), (1370, 22856), (2192, 14285), (2740, 11428), (2857, 10960), (5480, 5714)]