72931820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{280507}}^1$

素因数の和:280529

約数の個数: 24

約数和(自身を含む): 164938704

約数和(自身を除く): 92006884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 280507, 561014, 1122028, 1402535, 2805070, 3646591, 5610140, 7293182, 14586364, 18232955, 36465910, 72931820]

約数ペア:

[(1, 72931820), (2, 36465910), (4, 18232955), (5, 14586364), (10, 7293182), (13, 5610140), (20, 3646591), (26, 2805070), (52, 1402535), (65, 1122028), (130, 561014), (260, 280507)]