19264280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{643}}^1$

素因数の和:768

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 30813160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 643, 749, 856, 1070, 1286, 1498, 2140, 2572, 2996, 3215, 3745, 4280, 4501, 5144, 5992, 6430, 7490, 9002, 12860, 14980, 18004, 22505, 25720, 29960, 36008, 45010, 68801, 90020, 137602, 180040, 275204, 344005, 481607, 550408, 688010, 963214, 1376020, 1926428, 2408035, 2752040, 3852856, 4816070, 9632140, 19264280]

約数ペア:

[(1, 19264280), (2, 9632140), (4, 4816070), (5, 3852856), (7, 2752040), (8, 2408035), (10, 1926428), (14, 1376020), (20, 963214), (28, 688010), (35, 550408), (40, 481607), (56, 344005), (70, 275204), (107, 180040), (140, 137602), (214, 90020), (280, 68801), (428, 45010), (535, 36008), (643, 29960), (749, 25720), (856, 22505), (1070, 18004), (1286, 14980), (1498, 12860), (2140, 9002), (2572, 7490), (2996, 6430), (3215, 5992), (3745, 5144), (4280, 4501)]