1771304840

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{68443}}^1$

素因数の和:69101

約数の個数: 32

約数和(自身を含む): 3991654080

約数和(自身を除く): 2220349240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 5176, 6470, 12940, 25880, 68443, 136886, 273772, 342215, 547544, 684430, 1368860, 2737720, 44282621, 88565242, 177130484, 221413105, 354260968, 442826210, 885652420, 1771304840]

約数ペア:

[(1, 1771304840), (2, 885652420), (4, 442826210), (5, 354260968), (8, 221413105), (10, 177130484), (20, 88565242), (40, 44282621), (647, 2737720), (1294, 1368860), (2588, 684430), (3235, 547544), (5176, 342215), (6470, 273772), (12940, 136886), (25880, 68443)]