20279324

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:390

約数の個数: 36

約数和(自身を含む): 38891160

約数和(自身を除く): 18611836

約数列:

[1, 2, 4, 13, 26, 52, 131, 169, 229, 262, 338, 458, 524, 676, 916, 1703, 2977, 3406, 5954, 6812, 11908, 22139, 29999, 38701, 44278, 59998, 77402, 88556, 119996, 154804, 389987, 779974, 1559948, 5069831, 10139662, 20279324]

約数ペア:

[(1, 20279324), (2, 10139662), (4, 5069831), (13, 1559948), (26, 779974), (52, 389987), (131, 154804), (169, 119996), (229, 88556), (262, 77402), (338, 59998), (458, 44278), (524, 38701), (676, 29999), (916, 22139), (1703, 11908), (2977, 6812), (3406, 5954)]