1290920

素因数分解:

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

素因数の和:617

約数の個数: 32

約数和(自身を含む): 2959200

約数和(自身を除く): 1668280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 547, 590, 1094, 1180, 2188, 2360, 2735, 4376, 5470, 10940, 21880, 32273, 64546, 129092, 161365, 258184, 322730, 645460, 1290920]

約数ペア:

[(1, 1290920), (2, 645460), (4, 322730), (5, 258184), (8, 161365), (10, 129092), (20, 64546), (40, 32273), (59, 21880), (118, 10940), (236, 5470), (295, 4376), (472, 2735), (547, 2360), (590, 2188), (1094, 1180)]