13453840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3911}}^1$

素因数の和:3967

約数の個数: 40

約数和(自身を含む): 32015808

約数和(自身を除く): 18561968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3911, 7822, 15644, 19555, 31288, 39110, 62576, 78220, 156440, 168173, 312880, 336346, 672692, 840865, 1345384, 1681730, 2690768, 3363460, 6726920, 13453840]

約数ペア:

[(1, 13453840), (2, 6726920), (4, 3363460), (5, 2690768), (8, 1681730), (10, 1345384), (16, 840865), (20, 672692), (40, 336346), (43, 312880), (80, 168173), (86, 156440), (172, 78220), (215, 62576), (344, 39110), (430, 31288), (688, 19555), (860, 15644), (1720, 7822), (3440, 3911)]