725140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2789}}^1$

素因数の和:2811

約数の個数: 24

約数和(自身を含む): 1640520

約数和(自身を除く): 915380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2789, 5578, 11156, 13945, 27890, 36257, 55780, 72514, 145028, 181285, 362570, 725140]

約数ペア:

[(1, 725140), (2, 362570), (4, 181285), (5, 145028), (10, 72514), (13, 55780), (20, 36257), (26, 27890), (52, 13945), (65, 11156), (130, 5578), (260, 2789)]