128538384

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{205991}}^1$

素因数の和:206015

約数の個数: 40

約数和(自身を含む): 357602112

約数和(自身を除く): 229063728

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 205991, 411982, 617973, 823964, 1235946, 1647928, 2471892, 2677883, 3295856, 4943784, 5355766, 8033649, 9887568, 10711532, 16067298, 21423064, 32134596, 42846128, 64269192, 128538384]

約数ペア:

[(1, 128538384), (2, 64269192), (3, 42846128), (4, 32134596), (6, 21423064), (8, 16067298), (12, 10711532), (13, 9887568), (16, 8033649), (24, 5355766), (26, 4943784), (39, 3295856), (48, 2677883), (52, 2471892), (78, 1647928), (104, 1235946), (156, 823964), (208, 617973), (312, 411982), (624, 205991)]