20648348

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 22897252

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 59, 116, 118, 203, 236, 406, 413, 431, 812, 826, 862, 1652, 1711, 1724, 3017, 3422, 6034, 6844, 11977, 12068, 12499, 23954, 24998, 25429, 47908, 49996, 50858, 87493, 101716, 174986, 178003, 349972, 356006, 712012, 737441, 1474882, 2949764, 5162087, 10324174, 20648348]

約数ペア:

[(1, 20648348), (2, 10324174), (4, 5162087), (7, 2949764), (14, 1474882), (28, 737441), (29, 712012), (58, 356006), (59, 349972), (116, 178003), (118, 174986), (203, 101716), (236, 87493), (406, 50858), (413, 49996), (431, 47908), (812, 25429), (826, 24998), (862, 23954), (1652, 12499), (1711, 12068), (1724, 11977), (3017, 6844), (3422, 6034)]