261728090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{118429}}^1$

素因数の和:118466

約数の個数: 32

約数和(自身を含む): 537198480

約数和(自身を除く): 275470390

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 118429, 236858, 592145, 1184290, 1539577, 2013293, 3079154, 4026586, 7697885, 10066465, 15395770, 20132930, 26172809, 52345618, 130864045, 261728090]

約数ペア:

[(1, 261728090), (2, 130864045), (5, 52345618), (10, 26172809), (13, 20132930), (17, 15395770), (26, 10066465), (34, 7697885), (65, 4026586), (85, 3079154), (130, 2013293), (170, 1539577), (221, 1184290), (442, 592145), (1105, 236858), (2210, 118429)]