399125375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{1033}}^1$

素因数の和:1340

約数の個数: 32

約数和(自身を含む): 545852736

約数和(自身を除く): 146727361

約数列:

[1, 5, 11, 25, 55, 125, 275, 281, 1033, 1375, 1405, 3091, 5165, 7025, 11363, 15455, 25825, 35125, 56815, 77275, 129125, 284075, 290273, 386375, 1420375, 1451365, 3193003, 7256825, 15965015, 36284125, 79825075, 399125375]

約数ペア:

[(1, 399125375), (5, 79825075), (11, 36284125), (25, 15965015), (55, 7256825), (125, 3193003), (275, 1451365), (281, 1420375), (1033, 386375), (1375, 290273), (1405, 284075), (3091, 129125), (5165, 77275), (7025, 56815), (11363, 35125), (15455, 25825)]