28005860

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{16871}}^1$

素因数の和:16963

約数の個数: 24

約数和(自身を含む): 59524416

約数和(自身を除く): 31518556

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 16871, 33742, 67484, 84355, 168710, 337420, 1400293, 2800586, 5601172, 7001465, 14002930, 28005860]

約数ペア:

[(1, 28005860), (2, 14002930), (4, 7001465), (5, 5601172), (10, 2800586), (20, 1400293), (83, 337420), (166, 168710), (332, 84355), (415, 67484), (830, 33742), (1660, 16871)]