2402540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^2$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 5810448

約数和(自身を除く): 3407908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1834, 2620, 3668, 4585, 9170, 17161, 18340, 34322, 68644, 85805, 120127, 171610, 240254, 343220, 480508, 600635, 1201270, 2402540]

約数ペア:

[(1, 2402540), (2, 1201270), (4, 600635), (5, 480508), (7, 343220), (10, 240254), (14, 171610), (20, 120127), (28, 85805), (35, 68644), (70, 34322), (131, 18340), (140, 17161), (262, 9170), (524, 4585), (655, 3668), (917, 2620), (1310, 1834)]