2581840

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:619

約数の個数: 40

約数和(自身を含む): 6115680

約数和(自身を除く): 3533840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 547, 590, 944, 1094, 1180, 2188, 2360, 2735, 4376, 4720, 5470, 8752, 10940, 21880, 32273, 43760, 64546, 129092, 161365, 258184, 322730, 516368, 645460, 1290920, 2581840]

約数ペア:

[(1, 2581840), (2, 1290920), (4, 645460), (5, 516368), (8, 322730), (10, 258184), (16, 161365), (20, 129092), (40, 64546), (59, 43760), (80, 32273), (118, 21880), (236, 10940), (295, 8752), (472, 5470), (547, 4720), (590, 4376), (944, 2735), (1094, 2360), (1180, 2188)]