28129390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{491}}^1$

素因数の和:852

約数の個数: 32

約数和(自身を含む): 53879904

約数和(自身を除く): 25750514

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 337, 491, 674, 982, 1685, 2455, 3370, 4910, 5729, 8347, 11458, 16694, 28645, 41735, 57290, 83470, 165467, 330934, 827335, 1654670, 2812939, 5625878, 14064695, 28129390]

約数ペア:

[(1, 28129390), (2, 14064695), (5, 5625878), (10, 2812939), (17, 1654670), (34, 827335), (85, 330934), (170, 165467), (337, 83470), (491, 57290), (674, 41735), (982, 28645), (1685, 16694), (2455, 11458), (3370, 8347), (4910, 5729)]