997975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 1428480

約数和(自身を除く): 430505

約数列:

[1, 5, 11, 19, 25, 55, 95, 191, 209, 275, 475, 955, 1045, 2101, 3629, 4775, 5225, 10505, 18145, 39919, 52525, 90725, 199595, 997975]

約数ペア:

[(1, 997975), (5, 199595), (11, 90725), (19, 52525), (25, 39919), (55, 18145), (95, 10505), (191, 5225), (209, 4775), (275, 3629), (475, 2101), (955, 1045)]