26940280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16427}}^1$

素因数の和:16479

約数の個数: 32

約数和(自身を含む): 62097840

約数和(自身を除く): 35157560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 16427, 32854, 65708, 82135, 131416, 164270, 328540, 657080, 673507, 1347014, 2694028, 3367535, 5388056, 6735070, 13470140, 26940280]

約数ペア:

[(1, 26940280), (2, 13470140), (4, 6735070), (5, 5388056), (8, 3367535), (10, 2694028), (20, 1347014), (40, 673507), (41, 657080), (82, 328540), (164, 164270), (205, 131416), (328, 82135), (410, 65708), (820, 32854), (1640, 16427)]