85378580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{87121}}^1$

素因数の和:87144

約数の個数: 36

約数和(自身を含む): 208570068

約数和(自身を除く): 123191488

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 87121, 174242, 348484, 435605, 609847, 871210, 1219694, 1742420, 2439388, 3049235, 4268929, 6098470, 8537858, 12196940, 17075716, 21344645, 42689290, 85378580]

約数ペア:

[(1, 85378580), (2, 42689290), (4, 21344645), (5, 17075716), (7, 12196940), (10, 8537858), (14, 6098470), (20, 4268929), (28, 3049235), (35, 2439388), (49, 1742420), (70, 1219694), (98, 871210), (140, 609847), (196, 435605), (245, 348484), (490, 174242), (980, 87121)]