520070397

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 891316224

約数和(自身を除く): 371245827

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 107, 159, 231, 321, 371, 397, 583, 749, 1113, 1177, 1191, 1749, 2247, 2779, 3531, 4081, 4367, 5671, 8239, 8337, 12243, 13101, 17013, 21041, 24717, 30569, 39697, 42479, 62381, 63123, 91707, 119091, 127437, 147287, 187143, 231451, 297353, 436667, 441861, 467269, 694353, 892059, 1310001, 1401807, 1620157, 2251387, 3270883, 4860471, 6754161, 9812649, 15759709, 24765257, 47279127, 74295771, 173356799, 520070397]

約数ペア:

[(1, 520070397), (3, 173356799), (7, 74295771), (11, 47279127), (21, 24765257), (33, 15759709), (53, 9812649), (77, 6754161), (107, 4860471), (159, 3270883), (231, 2251387), (321, 1620157), (371, 1401807), (397, 1310001), (583, 892059), (749, 694353), (1113, 467269), (1177, 441861), (1191, 436667), (1749, 297353), (2247, 231451), (2779, 187143), (3531, 147287), (4081, 127437), (4367, 119091), (5671, 91707), (8239, 63123), (8337, 62381), (12243, 42479), (13101, 39697), (17013, 30569), (21041, 24717)]