85665560

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4969}}^1$

素因数の和:5411

約数の個数: 32

約数和(自身を含む): 193233600

約数和(自身を除く): 107568040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 4969, 8620, 9938, 17240, 19876, 24845, 39752, 49690, 99380, 198760, 2141639, 4283278, 8566556, 10708195, 17133112, 21416390, 42832780, 85665560]

約数ペア:

[(1, 85665560), (2, 42832780), (4, 21416390), (5, 17133112), (8, 10708195), (10, 8566556), (20, 4283278), (40, 2141639), (431, 198760), (862, 99380), (1724, 49690), (2155, 39752), (3448, 24845), (4310, 19876), (4969, 17240), (8620, 9938)]