1388390968

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{20089}}^1$

素因数の和:20311

約数の個数: 32

約数和(自身を含む): 2668755600

約数和(自身を除く): 1280364632

約数列:

[1, 2, 4, 8, 53, 106, 163, 212, 326, 424, 652, 1304, 8639, 17278, 20089, 34556, 40178, 69112, 80356, 160712, 1064717, 2129434, 3274507, 4258868, 6549014, 8517736, 13098028, 26196056, 173548871, 347097742, 694195484, 1388390968]

約数ペア:

[(1, 1388390968), (2, 694195484), (4, 347097742), (8, 173548871), (53, 26196056), (106, 13098028), (163, 8517736), (212, 6549014), (326, 4258868), (424, 3274507), (652, 2129434), (1304, 1064717), (8639, 160712), (17278, 80356), (20089, 69112), (34556, 40178)]