291139880

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 665763840

約数和(自身を除く): 374623960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 223, 254, 257, 446, 508, 514, 635, 892, 1016, 1028, 1115, 1270, 1285, 1784, 2056, 2230, 2540, 2570, 4460, 5080, 5140, 8920, 10280, 28321, 32639, 56642, 57311, 65278, 113284, 114622, 130556, 141605, 163195, 226568, 229244, 261112, 283210, 286555, 326390, 458488, 566420, 573110, 652780, 1132840, 1146220, 1305560, 2292440, 7278497, 14556994, 29113988, 36392485, 58227976, 72784970, 145569940, 291139880]

約数ペア:

[(1, 291139880), (2, 145569940), (4, 72784970), (5, 58227976), (8, 36392485), (10, 29113988), (20, 14556994), (40, 7278497), (127, 2292440), (223, 1305560), (254, 1146220), (257, 1132840), (446, 652780), (508, 573110), (514, 566420), (635, 458488), (892, 326390), (1016, 286555), (1028, 283210), (1115, 261112), (1270, 229244), (1285, 226568), (1784, 163195), (2056, 141605), (2230, 130556), (2540, 114622), (2570, 113284), (4460, 65278), (5080, 57311), (5140, 56642), (8920, 32639), (10280, 28321)]