331664

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{1091}}^1$

素因数の和:1118

約数の個数: 20

約数和(自身を含む): 677040

約数和(自身を除く): 345376

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 1091, 2182, 4364, 8728, 17456, 20729, 41458, 82916, 165832, 331664]

約数ペア:

[(1, 331664), (2, 165832), (4, 82916), (8, 41458), (16, 20729), (19, 17456), (38, 8728), (76, 4364), (152, 2182), (304, 1091)]