128680440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{153191}}^1$

素因数の和:153212

約数の個数: 64

約数和(自身を含む): 441192960

約数和(自身を除く): 312512520

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, 153191, 306382, 459573, 612764, 765955, 919146, 1072337, 1225528, 1531910, 1838292, 2144674, 2297865, 3063820, 3217011, 3676584, 4289348, 4595730, 5361685, 6127640, 6434022, 8578696, 9191460, 10723370, 12868044, 16085055, 18382920, 21446740, 25736088, 32170110, 42893480, 64340220, 128680440]

約数ペア:

[(1, 128680440), (2, 64340220), (3, 42893480), (4, 32170110), (5, 25736088), (6, 21446740), (7, 18382920), (8, 16085055), (10, 12868044), (12, 10723370), (14, 9191460), (15, 8578696), (20, 6434022), (21, 6127640), (24, 5361685), (28, 4595730), (30, 4289348), (35, 3676584), (40, 3217011), (42, 3063820), (56, 2297865), (60, 2144674), (70, 1838292), (84, 1531910), (105, 1225528), (120, 1072337), (140, 919146), (168, 765955), (210, 612764), (280, 459573), (420, 306382), (840, 153191)]