1977995

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 2557440

約数和(自身を除く): 579445

約数列:

[1, 5, 19, 47, 95, 235, 443, 893, 2215, 4465, 8417, 20821, 42085, 104105, 395599, 1977995]

約数ペア:

[(1, 1977995), (5, 395599), (19, 104105), (47, 42085), (95, 20821), (235, 8417), (443, 4465), (893, 2215)]