31971985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 42550272

約数和(自身を除く): 10578287

約数列:

[1, 5, 17, 47, 53, 85, 151, 235, 265, 755, 799, 901, 2491, 2567, 3995, 4505, 7097, 8003, 12455, 12835, 35485, 40015, 42347, 120649, 136051, 211735, 376141, 603245, 680255, 1880705, 6394397, 31971985]

約数ペア:

[(1, 31971985), (5, 6394397), (17, 1880705), (47, 680255), (53, 603245), (85, 376141), (151, 211735), (235, 136051), (265, 120649), (755, 42347), (799, 40015), (901, 35485), (2491, 12835), (2567, 12455), (3995, 8003), (4505, 7097)]