256400839

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^2\times {\mathrm{149}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 284382000

約数和(自身を除く): 27981161

約数列:

[1, 19, 41, 47, 149, 779, 893, 1927, 2209, 2831, 6109, 7003, 36613, 41971, 90569, 116071, 133057, 287123, 329141, 1720811, 5455337, 6253679, 13494781, 256400839]

約数ペア:

[(1, 256400839), (19, 13494781), (41, 6253679), (47, 5455337), (149, 1720811), (779, 329141), (893, 287123), (1927, 133057), (2209, 116071), (2831, 90569), (6109, 41971), (7003, 36613)]