8020375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 11531520

約数和(自身を除く): 3511145

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 209, 275, 307, 475, 1045, 1375, 1535, 2375, 3377, 5225, 5833, 7675, 16885, 26125, 29165, 38375, 64163, 84425, 145825, 320815, 422125, 729125, 1604075, 8020375]

約数ペア:

[(1, 8020375), (5, 1604075), (11, 729125), (19, 422125), (25, 320815), (55, 145825), (95, 84425), (125, 64163), (209, 38375), (275, 29165), (307, 26125), (475, 16885), (1045, 7675), (1375, 5833), (1535, 5225), (2375, 3377)]