13151120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3823}}^1$

素因数の和:3879

約数の個数: 40

約数和(自身を含む): 31295616

約数和(自身を除く): 18144496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3823, 7646, 15292, 19115, 30584, 38230, 61168, 76460, 152920, 164389, 305840, 328778, 657556, 821945, 1315112, 1643890, 2630224, 3287780, 6575560, 13151120]

約数ペア:

[(1, 13151120), (2, 6575560), (4, 3287780), (5, 2630224), (8, 1643890), (10, 1315112), (16, 821945), (20, 657556), (40, 328778), (43, 305840), (80, 164389), (86, 152920), (172, 76460), (215, 61168), (344, 38230), (430, 30584), (688, 19115), (860, 15292), (1720, 7646), (3440, 3823)]