129417808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20071}}^1$

素因数の和:20123

約数の個数: 40

約数和(自身を含む): 278759936

約数和(自身を除く): 149342128

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 20071, 40142, 80284, 160568, 260923, 321136, 521846, 622201, 1043692, 1244402, 2087384, 2488804, 4174768, 4977608, 8088613, 9955216, 16177226, 32354452, 64708904, 129417808]

約数ペア:

[(1, 129417808), (2, 64708904), (4, 32354452), (8, 16177226), (13, 9955216), (16, 8088613), (26, 4977608), (31, 4174768), (52, 2488804), (62, 2087384), (104, 1244402), (124, 1043692), (208, 622201), (248, 521846), (403, 321136), (496, 260923), (806, 160568), (1612, 80284), (3224, 40142), (6448, 20071)]