28341680

素因数分解:

$2^4\times 5^1\times {\mathrm{354271}}^1$

素因数の和:354284

約数の個数: 20

約数和(自身を含む): 65894592

約数和(自身を除く): 37552912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354271, 708542, 1417084, 1771355, 2834168, 3542710, 5668336, 7085420, 14170840, 28341680]

約数ペア:

[(1, 28341680), (2, 14170840), (4, 7085420), (5, 5668336), (8, 3542710), (10, 2834168), (16, 1771355), (20, 1417084), (40, 708542), (80, 354271)]