139802780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{537703}}^1$

素因数の和:537725

約数の個数: 24

約数和(自身を含む): 316169952

約数和(自身を除く): 176367172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 537703, 1075406, 2150812, 2688515, 5377030, 6990139, 10754060, 13980278, 27960556, 34950695, 69901390, 139802780]

約数ペア:

[(1, 139802780), (2, 69901390), (4, 34950695), (5, 27960556), (10, 13980278), (13, 10754060), (20, 6990139), (26, 5377030), (52, 2688515), (65, 2150812), (130, 1075406), (260, 537703)]