257409070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{36931}}^1$

素因数の和:36996

約数の個数: 32

約数和(自身を含む): 502570656

約数和(自身を除く): 245161586

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 3485, 6970, 36931, 73862, 184655, 369310, 627827, 1255654, 1514171, 3028342, 3139135, 6278270, 7570855, 15141710, 25740907, 51481814, 128704535, 257409070]

約数ペア:

[(1, 257409070), (2, 128704535), (5, 51481814), (10, 25740907), (17, 15141710), (34, 7570855), (41, 6278270), (82, 3139135), (85, 3028342), (170, 1514171), (205, 1255654), (410, 627827), (697, 369310), (1394, 184655), (3485, 73862), (6970, 36931)]