128875208

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{209213}}^1$

素因数の和:209237

約数の個数: 32

約数和(自身を含む): 301268160

約数和(自身を除く): 172392952

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 209213, 418426, 836852, 1464491, 1673704, 2301343, 2928982, 4602686, 5857964, 9205372, 11715928, 16109401, 18410744, 32218802, 64437604, 128875208]

約数ペア:

[(1, 128875208), (2, 64437604), (4, 32218802), (7, 18410744), (8, 16109401), (11, 11715928), (14, 9205372), (22, 5857964), (28, 4602686), (44, 2928982), (56, 2301343), (77, 1673704), (88, 1464491), (154, 836852), (308, 418426), (616, 209213)]