18278950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:373

約数の個数: 48

約数和(自身を含む): 36426240

約数和(自身を除く): 18147290

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 71, 95, 142, 190, 271, 355, 475, 542, 710, 950, 1349, 1355, 1775, 2698, 2710, 3550, 5149, 6745, 6775, 10298, 13490, 13550, 19241, 25745, 33725, 38482, 51490, 67450, 96205, 128725, 192410, 257450, 365579, 481025, 731158, 962050, 1827895, 3655790, 9139475, 18278950]

約数ペア:

[(1, 18278950), (2, 9139475), (5, 3655790), (10, 1827895), (19, 962050), (25, 731158), (38, 481025), (50, 365579), (71, 257450), (95, 192410), (142, 128725), (190, 96205), (271, 67450), (355, 51490), (475, 38482), (542, 33725), (710, 25745), (950, 19241), (1349, 13550), (1355, 13490), (1775, 10298), (2698, 6775), (2710, 6745), (3550, 5149)]