20797075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 7326125

約数列:

[1, 5, 13, 25, 65, 89, 325, 445, 719, 1157, 2225, 3595, 5785, 9347, 17975, 28925, 46735, 63991, 233675, 319955, 831883, 1599775, 4159415, 20797075]

約数ペア:

[(1, 20797075), (5, 4159415), (13, 1599775), (25, 831883), (65, 319955), (89, 233675), (325, 63991), (445, 46735), (719, 28925), (1157, 17975), (2225, 9347), (3595, 5785)]