216792980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{12889}}^1$

素因数の和:12956

約数の個数: 36

約数和(自身を含む): 471541980

約数和(自身を除く): 254749000

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 4205, 8410, 12889, 16820, 25778, 51556, 64445, 128890, 257780, 373781, 747562, 1495124, 1868905, 3737810, 7475620, 10839649, 21679298, 43358596, 54198245, 108396490, 216792980]

約数ペア:

[(1, 216792980), (2, 108396490), (4, 54198245), (5, 43358596), (10, 21679298), (20, 10839649), (29, 7475620), (58, 3737810), (116, 1868905), (145, 1495124), (290, 747562), (580, 373781), (841, 257780), (1682, 128890), (3364, 64445), (4205, 51556), (8410, 25778), (12889, 16820)]