128777138

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{911}}^1$

素因数の和:1382

約数の個数: 32

約数和(自身を含む): 231137280

約数和(自身を除く): 102360142

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 439, 878, 911, 1822, 3073, 6146, 6377, 10097, 12754, 20194, 20953, 41906, 70679, 141358, 146671, 293342, 399929, 799858, 2799503, 5599006, 9198367, 18396734, 64388569, 128777138]

約数ペア:

[(1, 128777138), (2, 64388569), (7, 18396734), (14, 9198367), (23, 5599006), (46, 2799503), (161, 799858), (322, 399929), (439, 293342), (878, 146671), (911, 141358), (1822, 70679), (3073, 41906), (6146, 20953), (6377, 20194), (10097, 12754)]