18320995

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2069}}^1$

素因数の和:2115

約数の個数: 32

約数和(自身を含む): 28615680

約数和(自身を除く): 10294685

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 2069, 8855, 10345, 14483, 22759, 47587, 72415, 113795, 159313, 237935, 333109, 523457, 796565, 1665545, 2617285, 3664199, 18320995]

約数ペア:

[(1, 18320995), (5, 3664199), (7, 2617285), (11, 1665545), (23, 796565), (35, 523457), (55, 333109), (77, 237935), (115, 159313), (161, 113795), (253, 72415), (385, 47587), (805, 22759), (1265, 14483), (1771, 10345), (2069, 8855)]