128037808

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{421177}}^1$

素因数の和:421204

約数の個数: 20

約数和(自身を含む): 261130360

約数和(自身を除く): 133092552

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 421177, 842354, 1684708, 3369416, 6738832, 8002363, 16004726, 32009452, 64018904, 128037808]

約数ペア:

[(1, 128037808), (2, 64018904), (4, 32009452), (8, 16004726), (16, 8002363), (19, 6738832), (38, 3369416), (76, 1684708), (152, 842354), (304, 421177)]