28126540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108179}}^1$

素因数の和:108201

約数の個数: 24

約数和(自身を含む): 63609840

約数和(自身を除く): 35483300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108179, 216358, 432716, 540895, 1081790, 1406327, 2163580, 2812654, 5625308, 7031635, 14063270, 28126540]

約数ペア:

[(1, 28126540), (2, 14063270), (4, 7031635), (5, 5625308), (10, 2812654), (13, 2163580), (20, 1406327), (26, 1081790), (52, 540895), (65, 432716), (130, 216358), (260, 108179)]