63138380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 136080000

約数和(自身を除く): 72941620

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 158, 178, 316, 356, 395, 445, 449, 790, 890, 898, 1580, 1780, 1796, 2245, 4490, 7031, 8980, 14062, 28124, 35155, 35471, 39961, 70310, 70942, 79922, 140620, 141884, 159844, 177355, 199805, 354710, 399610, 709420, 799220, 3156919, 6313838, 12627676, 15784595, 31569190, 63138380]

約数ペア:

[(1, 63138380), (2, 31569190), (4, 15784595), (5, 12627676), (10, 6313838), (20, 3156919), (79, 799220), (89, 709420), (158, 399610), (178, 354710), (316, 199805), (356, 177355), (395, 159844), (445, 141884), (449, 140620), (790, 79922), (890, 70942), (898, 70310), (1580, 39961), (1780, 35471), (1796, 35155), (2245, 28124), (4490, 14062), (7031, 8980)]