13445980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 30373056

約数和(自身を除く): 16927076

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 557, 710, 1114, 1207, 1420, 2228, 2414, 2785, 4828, 5570, 6035, 9469, 11140, 12070, 18938, 24140, 37876, 39547, 47345, 79094, 94690, 158188, 189380, 197735, 395470, 672299, 790940, 1344598, 2689196, 3361495, 6722990, 13445980]

約数ペア:

[(1, 13445980), (2, 6722990), (4, 3361495), (5, 2689196), (10, 1344598), (17, 790940), (20, 672299), (34, 395470), (68, 197735), (71, 189380), (85, 158188), (142, 94690), (170, 79094), (284, 47345), (340, 39547), (355, 37876), (557, 24140), (710, 18938), (1114, 12070), (1207, 11140), (1420, 9469), (2228, 6035), (2414, 5570), (2785, 4828)]