148764520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{86491}}^1$

素因数の和:86545

約数の個数: 32

約数和(自身を含む): 342508320

約数和(自身を除く): 193743800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 86491, 172982, 345964, 432455, 691928, 864910, 1729820, 3459640, 3719113, 7438226, 14876452, 18595565, 29752904, 37191130, 74382260, 148764520]

約数ペア:

[(1, 148764520), (2, 74382260), (4, 37191130), (5, 29752904), (8, 18595565), (10, 14876452), (20, 7438226), (40, 3719113), (43, 3459640), (86, 1729820), (172, 864910), (215, 691928), (344, 432455), (430, 345964), (860, 172982), (1720, 86491)]