28884680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65647}}^1$

素因数の和:65669

約数の個数: 32

約数和(自身を含む): 70899840

約数和(自身を除く): 42015160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65647, 131294, 262588, 328235, 525176, 656470, 722117, 1312940, 1444234, 2625880, 2888468, 3610585, 5776936, 7221170, 14442340, 28884680]

約数ペア:

[(1, 28884680), (2, 14442340), (4, 7221170), (5, 5776936), (8, 3610585), (10, 2888468), (11, 2625880), (20, 1444234), (22, 1312940), (40, 722117), (44, 656470), (55, 525176), (88, 328235), (110, 262588), (220, 131294), (440, 65647)]