20239970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1$

素因数の和:1090

約数の個数: 32

約数和(自身を含む): 38257920

約数和(自身を除く): 18017950

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 983, 1966, 2059, 4118, 4915, 9830, 10295, 20590, 28507, 57014, 69793, 139586, 142535, 285070, 348965, 697930, 2023997, 4047994, 10119985, 20239970]

約数ペア:

[(1, 20239970), (2, 10119985), (5, 4047994), (10, 2023997), (29, 697930), (58, 348965), (71, 285070), (142, 142535), (145, 139586), (290, 69793), (355, 57014), (710, 28507), (983, 20590), (1966, 10295), (2059, 9830), (4118, 4915)]