728780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2803}}^1$

素因数の和:2825

約数の個数: 24

約数和(自身を含む): 1648752

約数和(自身を除く): 919972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2803, 5606, 11212, 14015, 28030, 36439, 56060, 72878, 145756, 182195, 364390, 728780]

約数ペア:

[(1, 728780), (2, 364390), (4, 182195), (5, 145756), (10, 72878), (13, 56060), (20, 36439), (26, 28030), (52, 14015), (65, 11212), (130, 5606), (260, 2803)]