128423743

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 155724800

約数和(自身を除く): 27301057

約数列:

[1, 7, 23, 79, 161, 439, 529, 553, 1817, 3073, 3703, 10097, 12719, 34681, 41791, 70679, 232231, 242767, 292537, 797663, 1625617, 5583641, 18346249, 128423743]

約数ペア:

[(1, 128423743), (7, 18346249), (23, 5583641), (79, 1625617), (161, 797663), (439, 292537), (529, 242767), (553, 232231), (1817, 70679), (3073, 41791), (3703, 34681), (10097, 12719)]