248220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{197}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 864864

約数和(自身を除く): 616644

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 197, 210, 252, 315, 394, 420, 591, 630, 788, 985, 1182, 1260, 1379, 1773, 1970, 2364, 2758, 2955, 3546, 3940, 4137, 5516, 5910, 6895, 7092, 8274, 8865, 11820, 12411, 13790, 16548, 17730, 20685, 24822, 27580, 35460, 41370, 49644, 62055, 82740, 124110, 248220]

約数ペア:

[(1, 248220), (2, 124110), (3, 82740), (4, 62055), (5, 49644), (6, 41370), (7, 35460), (9, 27580), (10, 24822), (12, 20685), (14, 17730), (15, 16548), (18, 13790), (20, 12411), (21, 11820), (28, 8865), (30, 8274), (35, 7092), (36, 6895), (42, 5910), (45, 5516), (60, 4137), (63, 3940), (70, 3546), (84, 2955), (90, 2758), (105, 2364), (126, 1970), (140, 1773), (180, 1379), (197, 1260), (210, 1182), (252, 985), (315, 788), (394, 630), (420, 591)]