680778865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1\times {\mathrm{491}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 895660416

約数和(自身を除く): 214881551

約数列:

[1, 5, 13, 65, 83, 257, 415, 491, 1079, 1285, 2455, 3341, 5395, 6383, 16705, 21331, 31915, 40753, 106655, 126187, 203765, 277303, 529789, 630935, 1386515, 1640431, 2648945, 8202155, 10473521, 52367605, 136155773, 680778865]

約数ペア:

[(1, 680778865), (5, 136155773), (13, 52367605), (65, 10473521), (83, 8202155), (257, 2648945), (415, 1640431), (491, 1386515), (1079, 630935), (1285, 529789), (2455, 277303), (3341, 203765), (5395, 126187), (6383, 106655), (16705, 40753), (21331, 31915)]