320428479

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{2897}}^1$

素因数の和:3159

約数の個数: 32

約数和(自身を含む): 511902720

約数和(自身を除く): 191474241

約数列:

[1, 3, 7, 21, 23, 69, 161, 229, 483, 687, 1603, 2897, 4809, 5267, 8691, 15801, 20279, 36869, 60837, 66631, 110607, 199893, 466417, 663413, 1399251, 1990239, 4643891, 13931673, 15258499, 45775497, 106809493, 320428479]

約数ペア:

[(1, 320428479), (3, 106809493), (7, 45775497), (21, 15258499), (23, 13931673), (69, 4643891), (161, 1990239), (229, 1399251), (483, 663413), (687, 466417), (1603, 199893), (2897, 110607), (4809, 66631), (5267, 60837), (8691, 36869), (15801, 20279)]