20805045

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 34245120

約数和(自身を除く): 13440075

約数列:

[1, 3, 5, 15, 79, 97, 181, 237, 291, 395, 485, 543, 905, 1185, 1455, 2715, 7663, 14299, 17557, 22989, 38315, 42897, 52671, 71495, 87785, 114945, 214485, 263355, 1387003, 4161009, 6935015, 20805045]

約数ペア:

[(1, 20805045), (3, 6935015), (5, 4161009), (15, 1387003), (79, 263355), (97, 214485), (181, 114945), (237, 87785), (291, 71495), (395, 52671), (485, 42897), (543, 38315), (905, 22989), (1185, 17557), (1455, 14299), (2715, 7663)]