259062020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{264349}}^1$

素因数の和:264372

約数の個数: 36

約数和(自身を含む): 632853900

約数和(自身を除く): 373791880

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 264349, 528698, 1057396, 1321745, 1850443, 2643490, 3700886, 5286980, 7401772, 9252215, 12953101, 18504430, 25906202, 37008860, 51812404, 64765505, 129531010, 259062020]

約数ペア:

[(1, 259062020), (2, 129531010), (4, 64765505), (5, 51812404), (7, 37008860), (10, 25906202), (14, 18504430), (20, 12953101), (28, 9252215), (35, 7401772), (49, 5286980), (70, 3700886), (98, 2643490), (140, 1850443), (196, 1321745), (245, 1057396), (490, 528698), (980, 264349)]