16781960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 41428800

約数和(自身を除く): 24646840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 104, 118, 130, 236, 260, 295, 472, 520, 547, 590, 767, 1094, 1180, 1534, 2188, 2360, 2735, 3068, 3835, 4376, 5470, 6136, 7111, 7670, 10940, 14222, 15340, 21880, 28444, 30680, 32273, 35555, 56888, 64546, 71110, 129092, 142220, 161365, 258184, 284440, 322730, 419549, 645460, 839098, 1290920, 1678196, 2097745, 3356392, 4195490, 8390980, 16781960]

約数ペア:

[(1, 16781960), (2, 8390980), (4, 4195490), (5, 3356392), (8, 2097745), (10, 1678196), (13, 1290920), (20, 839098), (26, 645460), (40, 419549), (52, 322730), (59, 284440), (65, 258184), (104, 161365), (118, 142220), (130, 129092), (236, 71110), (260, 64546), (295, 56888), (472, 35555), (520, 32273), (547, 30680), (590, 28444), (767, 21880), (1094, 15340), (1180, 14222), (1534, 10940), (2188, 7670), (2360, 7111), (2735, 6136), (3068, 5470), (3835, 4376)]