31427140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{433}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 69995520

約数和(自身を除く): 38568380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 380, 382, 433, 764, 866, 955, 1732, 1910, 2165, 3629, 3820, 4330, 7258, 8227, 8660, 14516, 16454, 18145, 32908, 36290, 41135, 72580, 82270, 82703, 164540, 165406, 330812, 413515, 827030, 1571357, 1654060, 3142714, 6285428, 7856785, 15713570, 31427140]

約数ペア:

[(1, 31427140), (2, 15713570), (4, 7856785), (5, 6285428), (10, 3142714), (19, 1654060), (20, 1571357), (38, 827030), (76, 413515), (95, 330812), (190, 165406), (191, 164540), (380, 82703), (382, 82270), (433, 72580), (764, 41135), (866, 36290), (955, 32908), (1732, 18145), (1910, 16454), (2165, 14516), (3629, 8660), (3820, 8227), (4330, 7258)]