420180145

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{22273}}^1$

素因数の和:22310

約数の個数: 32

約数和(自身を含む): 641491200

約数和(自身を除く): 221311055

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 343, 385, 539, 1715, 2695, 3773, 18865, 22273, 111365, 155911, 245003, 779555, 1091377, 1225015, 1715021, 5456885, 7639639, 8575105, 12005147, 38198195, 60025735, 84036029, 420180145]

約数ペア:

[(1, 420180145), (5, 84036029), (7, 60025735), (11, 38198195), (35, 12005147), (49, 8575105), (55, 7639639), (77, 5456885), (245, 1715021), (343, 1225015), (385, 1091377), (539, 779555), (1715, 245003), (2695, 155911), (3773, 111365), (18865, 22273)]