128154920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{47819}}^1$

素因数の和:47897

約数の個数: 32

約数和(自身を含む): 292658400

約数和(自身を除く): 164503480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 47819, 95638, 191276, 239095, 382552, 478190, 956380, 1912760, 3203873, 6407746, 12815492, 16019365, 25630984, 32038730, 64077460, 128154920]

約数ペア:

[(1, 128154920), (2, 64077460), (4, 32038730), (5, 25630984), (8, 16019365), (10, 12815492), (20, 6407746), (40, 3203873), (67, 1912760), (134, 956380), (268, 478190), (335, 382552), (536, 239095), (670, 191276), (1340, 95638), (2680, 47819)]