77535020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1013}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 168648480

約数和(自身を除く): 91113460

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 860, 890, 1013, 1780, 2026, 3827, 4052, 5065, 7654, 10130, 15308, 19135, 20260, 38270, 43559, 76540, 87118, 90157, 174236, 180314, 217795, 360628, 435590, 450785, 871180, 901570, 1803140, 3876751, 7753502, 15507004, 19383755, 38767510, 77535020]

約数ペア:

[(1, 77535020), (2, 38767510), (4, 19383755), (5, 15507004), (10, 7753502), (20, 3876751), (43, 1803140), (86, 901570), (89, 871180), (172, 450785), (178, 435590), (215, 360628), (356, 217795), (430, 180314), (445, 174236), (860, 90157), (890, 87118), (1013, 76540), (1780, 43559), (2026, 38270), (3827, 20260), (4052, 19135), (5065, 15308), (7654, 10130)]