13455560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7823}}^1$

素因数の和:7877

約数の個数: 32

約数和(自身を含む): 30983040

約数和(自身を除く): 17527480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7823, 15646, 31292, 39115, 62584, 78230, 156460, 312920, 336389, 672778, 1345556, 1681945, 2691112, 3363890, 6727780, 13455560]

約数ペア:

[(1, 13455560), (2, 6727780), (4, 3363890), (5, 2691112), (8, 1681945), (10, 1345556), (20, 672778), (40, 336389), (43, 312920), (86, 156460), (172, 78230), (215, 62584), (344, 39115), (430, 31292), (860, 15646), (1720, 7823)]