19815860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52147}}^1$

素因数の和:52175

約数の個数: 24

約数和(自身を含む): 43804320

約数和(自身を除く): 23988460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 52147, 104294, 208588, 260735, 521470, 990793, 1042940, 1981586, 3963172, 4953965, 9907930, 19815860]

約数ペア:

[(1, 19815860), (2, 9907930), (4, 4953965), (5, 3963172), (10, 1981586), (19, 1042940), (20, 990793), (38, 521470), (76, 260735), (95, 208588), (190, 104294), (380, 52147)]