388620120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{462643}}^1$

素因数の和:462664

約数の個数: 64

約数和(自身を含む): 1332414720

約数和(自身を除く): 943794600

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, 462643, 925286, 1387929, 1850572, 2313215, 2775858, 3238501, 3701144, 4626430, 5551716, 6477002, 6939645, 9252860, 9715503, 11103432, 12954004, 13879290, 16192505, 18505720, 19431006, 25908008, 27758580, 32385010, 38862012, 48577515, 55517160, 64770020, 77724024, 97155030, 129540040, 194310060, 388620120]

約数ペア:

[(1, 388620120), (2, 194310060), (3, 129540040), (4, 97155030), (5, 77724024), (6, 64770020), (7, 55517160), (8, 48577515), (10, 38862012), (12, 32385010), (14, 27758580), (15, 25908008), (20, 19431006), (21, 18505720), (24, 16192505), (28, 13879290), (30, 12954004), (35, 11103432), (40, 9715503), (42, 9252860), (56, 6939645), (60, 6477002), (70, 5551716), (84, 4626430), (105, 3701144), (120, 3238501), (140, 2775858), (168, 2313215), (210, 1850572), (280, 1387929), (420, 925286), (840, 462643)]