128796568

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{619}}^1\times {\mathrm{839}}^1$

素因数の和:1495

約数の個数: 32

約数和(自身を含む): 249984000

約数和(自身を除く): 121187432

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 619, 839, 1238, 1678, 2476, 3356, 4952, 6712, 19189, 26009, 38378, 52018, 76756, 104036, 153512, 208072, 519341, 1038682, 2077364, 4154728, 16099571, 32199142, 64398284, 128796568]

約数ペア:

[(1, 128796568), (2, 64398284), (4, 32199142), (8, 16099571), (31, 4154728), (62, 2077364), (124, 1038682), (248, 519341), (619, 208072), (839, 153512), (1238, 104036), (1678, 76756), (2476, 52018), (3356, 38378), (4952, 26009), (6712, 19189)]