78809420

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{571}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 169897728

約数和(自身を除く): 91088308

約数列:

[1, 2, 4, 5, 10, 20, 67, 103, 134, 206, 268, 335, 412, 515, 571, 670, 1030, 1142, 1340, 2060, 2284, 2855, 5710, 6901, 11420, 13802, 27604, 34505, 38257, 58813, 69010, 76514, 117626, 138020, 153028, 191285, 235252, 294065, 382570, 588130, 765140, 1176260, 3940471, 7880942, 15761884, 19702355, 39404710, 78809420]

約数ペア:

[(1, 78809420), (2, 39404710), (4, 19702355), (5, 15761884), (10, 7880942), (20, 3940471), (67, 1176260), (103, 765140), (134, 588130), (206, 382570), (268, 294065), (335, 235252), (412, 191285), (515, 153028), (571, 138020), (670, 117626), (1030, 76514), (1142, 69010), (1340, 58813), (2060, 38257), (2284, 34505), (2855, 27604), (5710, 13802), (6901, 11420)]