388804920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{462863}}^1$

素因数の和:462884

約数の個数: 64

約数和(自身を含む): 1333048320

約数和(自身を除く): 944243400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 462863, 925726, 1388589, 1851452, 2314315, 2777178, 3240041, 3702904, 4628630, 5554356, 6480082, 6942945, 9257260, 9720123, 11108712, 12960164, 13885890, 16200205, 18514520, 19440246, 25920328, 27771780, 32400410, 38880492, 48600615, 55543560, 64800820, 77760984, 97201230, 129601640, 194402460, 388804920]

約数ペア:

[(1, 388804920), (2, 194402460), (3, 129601640), (4, 97201230), (5, 77760984), (6, 64800820), (7, 55543560), (8, 48600615), (10, 38880492), (12, 32400410), (14, 27771780), (15, 25920328), (20, 19440246), (21, 18514520), (24, 16200205), (28, 13885890), (30, 12960164), (35, 11108712), (40, 9720123), (42, 9257260), (56, 6942945), (60, 6480082), (70, 5554356), (84, 4628630), (105, 3702904), (120, 3240041), (140, 2777178), (168, 2314315), (210, 1851452), (280, 1388589), (420, 925726), (840, 462863)]