2690345

素因数分解:

$5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 3830400

約数和(自身を除く): 1140055

約数列:

[1, 5, 7, 35, 49, 79, 139, 245, 395, 553, 695, 973, 2765, 3871, 4865, 6811, 10981, 19355, 34055, 54905, 76867, 384335, 538069, 2690345]

約数ペア:

[(1, 2690345), (5, 538069), (7, 384335), (35, 76867), (49, 54905), (79, 34055), (139, 19355), (245, 10981), (395, 6811), (553, 4865), (695, 3871), (973, 2765)]