256539892

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:621

約数の個数: 72

約数和(自身を含む): 544236000

約数和(自身を除く): 287696108

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 61, 86, 98, 122, 172, 196, 244, 301, 427, 499, 602, 854, 998, 1204, 1708, 1996, 2107, 2623, 2989, 3493, 4214, 5246, 5978, 6986, 8428, 10492, 11956, 13972, 18361, 21457, 24451, 30439, 36722, 42914, 48902, 60878, 73444, 85828, 97804, 121756, 128527, 150199, 213073, 257054, 300398, 426146, 514108, 600796, 852292, 1051393, 1308877, 1491511, 2102786, 2617754, 2983022, 4205572, 5235508, 5966044, 9162139, 18324278, 36648556, 64134973, 128269946, 256539892]

約数ペア:

[(1, 256539892), (2, 128269946), (4, 64134973), (7, 36648556), (14, 18324278), (28, 9162139), (43, 5966044), (49, 5235508), (61, 4205572), (86, 2983022), (98, 2617754), (122, 2102786), (172, 1491511), (196, 1308877), (244, 1051393), (301, 852292), (427, 600796), (499, 514108), (602, 426146), (854, 300398), (998, 257054), (1204, 213073), (1708, 150199), (1996, 128527), (2107, 121756), (2623, 97804), (2989, 85828), (3493, 73444), (4214, 60878), (5246, 48902), (5978, 42914), (6986, 36722), (8428, 30439), (10492, 24451), (11956, 21457), (13972, 18361)]