1990382303

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1861}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 2638915776

約数和(自身を除く): 648533473

約数列:

[1, 7, 13, 23, 49, 73, 91, 161, 299, 511, 637, 949, 1127, 1679, 1861, 2093, 3577, 6643, 11753, 13027, 14651, 21827, 24193, 42803, 46501, 82271, 91189, 135853, 152789, 169351, 299621, 556439, 950971, 1069523, 1185457, 1766089, 2097347, 3124619, 3895073, 6656797, 12362623, 21872333, 27265511, 40620047, 86538361, 153106331, 284340329, 1990382303]

約数ペア:

[(1, 1990382303), (7, 284340329), (13, 153106331), (23, 86538361), (49, 40620047), (73, 27265511), (91, 21872333), (161, 12362623), (299, 6656797), (511, 3895073), (637, 3124619), (949, 2097347), (1127, 1766089), (1679, 1185457), (1861, 1069523), (2093, 950971), (3577, 556439), (6643, 299621), (11753, 169351), (13027, 152789), (14651, 135853), (21827, 91189), (24193, 82271), (42803, 46501)]